Emergency medical technician paramedical Interview preparation and questions and answers and exam preparation For Apollo CMC Vellore Kavery And multi speciality hospital

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EMT / Paramedic Interview & Exam Preparation Guide

For Apollo, CMC Vellore, Kavery & Multi-Speciality Hospitals


PART 1 - INTERVIEW QUESTIONS & ANSWERS

Section A: Personal / HR Questions

Q1. Tell me about yourself.
"I am a certified Emergency Medical Technician with [X years] of experience in pre-hospital and in-hospital emergency care. I am trained in BLS, airway management, IV cannulation, patient triage, and transport. I am applying to [Apollo/CMC/Kavery] because of its reputation for high-quality emergency care and my desire to contribute to a professional, high-volume emergency department."
Q2. Why do you want to work in this hospital?
Mention the hospital's reputation - Apollo for tertiary care, CMC Vellore for academic excellence, Kavery for cardiac/neuroscience specialisation. Show you've researched them.
Q3. What are your strengths as an EMT?
"I remain calm under pressure, communicate clearly with the team, and I have strong hands-on skills in BLS, airway management, and patient stabilisation."
Q4. How do you handle stress during a mass casualty event?
"I follow the START/SALT triage protocol - assess patients systematically, prioritize by acuity, delegate tasks clearly, and communicate with the team throughout without letting emotion override clinical judgment."
Q5. Where do you see yourself in 5 years?
"I aim to complete my ACLS and Trauma Nurse/Paramedic certifications, take on a senior paramedic or emergency response coordinator role, and eventually contribute to training junior paramedics."

Section B: Situational / Scenario-Based Questions

Q6. A 45-year-old man collapses on the street. What do you do?
Ensure scene safety -> Check responsiveness (tap shoulders, shout) -> Call for help/activate EMS -> Check pulse (carotid, max 10 seconds) -> No pulse: begin CPR at 30:2 ratio, 100-120 compressions/min, depth 5-6 cm -> Attach AED as soon as available -> Shock if shockable rhythm (VF/pulseless VT) -> Resume CPR immediately after shock -> Continue until ROSC, ALS team arrives, or patient declared.
(Source: Tintinalli's Emergency Medicine; Roberts and Hedges' Clinical Procedures in Emergency)
Q7. A patient is brought in with severe trauma - gunshot wound to abdomen. What do you assess first?
Follow ABCDE approach:
  • A - Airway (patent? obstruction? c-spine control)
  • B - Breathing (bilateral chest rise, SpO2, tension pneumothorax signs?)
  • C - Circulation (pulse, BP, active hemorrhage control, IV access, fluids)
  • D - Disability (GCS, pupils, neuro status)
  • E - Exposure (fully expose patient, look for all injuries, prevent hypothermia)
Q8. You arrive at a scene with a patient in respiratory distress. What are your immediate steps?
Position patient upright (tripod if needed) -> High-flow O2 via non-rebreather mask (15 L/min) -> Pulse oximetry, vital signs -> Assess for cause: wheeze (asthma/COPD), stridor (upper obstruction), crackles (pulmonary edema) -> Prepare for BVM ventilation if deteriorating -> Notify team for advanced airway if SpO2 <90% despite O2.
Q9. A patient is in anaphylactic shock. What do you do?
  • Remove allergen if possible
  • Epinephrine (Adrenaline) 0.3-0.5 mg IM (1:1000) into outer thigh - this is the FIRST-LINE drug
  • Lay patient flat, elevate legs
  • O2 high flow
  • IV access, fluid bolus (NS 500 mL-1L)
  • Antihistamine (chlorpheniramine) + steroid (hydrocortisone) - secondary drugs
  • Monitor for biphasic reaction
(Source: Tintinalli's Emergency Medicine)
Q10. A child of 6 years has a witnessed cardiac arrest. What ratio do you use for 2-rescuer CPR?
15:2 compression-to-ventilation ratio for infants and children with 2 rescuers. For a single rescuer, 30:2 is used. Rate: 100-120 compressions/minute.
(Source: Tintinalli's Emergency Medicine; Braunwald's Heart Disease)
Q11. A patient has a GCS of 8 and is not protecting the airway. What do you do?
GCS ≤8 = intubation threshold. Prepare for rapid sequence intubation (RSI):
  • Pre-oxygenate with 100% O2 for 3-5 minutes
  • Assemble equipment: laryngoscope, ETT (appropriate size), suction, BVM, ETCO2
  • Sedative + paralytic (e.g., ketamine/etomidate + succinylcholine)
  • Intubate, confirm with ETCO2 waveform capnography, chest rise, auscultation
  • Secure tube, CXR confirmation
(Source: Tintinalli's Emergency Medicine - Airway Management)

Section C: Technical Questions

Q12. What does SAMPLE history stand for?
  • S - Signs & Symptoms
  • A - Allergies
  • M - Medications
  • P - Past medical/surgical history
  • L - Last oral intake
  • E - Events leading to the emergency
Q13. What is the normal compression-to-ventilation ratio in adults?
30:2 (30 chest compressions followed by 2 ventilations) for both 1-rescuer and 2-rescuer adult CPR. Once an advanced airway is placed (ETT/supraglottic), ventilate at 10 breaths/minute without interrupting compressions.
(Source: Rosen's Emergency Medicine; Roberts and Hedges)
Q14. What energy setting is used for defibrillation?
  • Monophasic defibrillator: 360 joules for VF/pulseless VT
  • Biphasic defibrillator: 120-200 joules (as per manufacturer; typically 200J)
  • AED: device selects energy automatically
  • Internal defibrillation (open chest): 10 joules
(Source: Pfenninger and Fowler's Procedures for Primary Care)
Q15. What is the standard dose of epinephrine in cardiac arrest?
1 mg IV/IO every 3-5 minutes (1:10,000 solution for IV use). Epinephrine improves ROSC and short-term survival in cardiac arrest.
(Source: Tintinalli's Emergency Medicine; Miller's Anesthesia)
Q16. What are the 4 Hs and 4 Ts of reversible causes of cardiac arrest?
  • 4 Hs: Hypoxia, Hypovolemia, Hypo/Hyperkalemia (electrolytes), Hypothermia
  • 4 Ts: Tension pneumothorax, Tamponade (cardiac), Toxins (drugs/poisons), Thrombosis (PE/MI)
Q17. What is the AVPU scale?
Quick neurological assessment:
  • A - Alert
  • V - Responds to Voice
  • P - Responds to Pain
  • U - Unresponsive
Q18. How do you confirm correct ETT placement?
  • Primary: Waveform end-tidal CO2 (ETCO2) - gold standard
  • Secondary: Bilateral chest rise, bilateral breath sounds, absence of gurgling over epigastrium
  • Chest X-ray for final confirmation (ETT tip should be 2-3 cm above carina)
  • SpO2 improvement
Q19. What IV fluid do you give in hypovolemic shock?
First line: Crystalloids - Normal Saline (0.9% NaCl) or Lactated Ringer's. Bolus: 500 mL-1L in adults (reassess after each bolus). In hemorrhagic shock: blood products (O-negative PRBCs) as early as possible; avoid over-resuscitation with crystalloids.
Q20. What is the Glasgow Coma Scale (GCS)?
ComponentScore
Eye opening (spontaneous/to voice/pain/none)4/3/2/1
Verbal response (oriented/confused/words/sounds/none)5/4/3/2/1
Motor response (obeys/localizes/withdraws/flexion/extension/none)6/5/4/3/2/1
  • Total: 3-15. Normal = 15. Intubation threshold = ≤8. Severe TBI = ≤8.

PART 2 - WRITTEN EXAM PREPARATION (MCQ Topics)

High-Frequency Topics for Hospital EMT Exams (Apollo/CMC/Kavery)

TopicKey Points to Know
BLS/CPR30:2 ratio adults; 15:2 children (2 rescuer); 100-120/min rate; 5-6 cm depth
AirwayJaw thrust (c-spine injury), chin lift; OPA/NPA sizing; BVM technique; RSI steps
DefibrillationVF/pulseless VT = shockable; PEA/Asystole = non-shockable; energies
Drugs in arrestEpinephrine 1mg IV/IO q3-5min; Amiodarone 300mg IV (VF/VT)
TriageSTART (Simple Triage and Rapid Treatment): Red/Yellow/Green/Black
Shock typesHypovolemic, Distributive (septic/anaphylactic/neurogenic), Cardiogenic, Obstructive
SpO2Normal: 95-100%; <94% = supplemental O2; <90% = severe hypoxia
Vital signsNormal adult: HR 60-100, RR 12-20, BP 90-120/60-80, Temp 37°C
GCSScore range 3-15; intubate if ≤8
Spinal immobilizationC-collar + long spine board for trauma with mechanism of injury
MI signsChest pain, diaphoresis, nausea, jaw pain, ECG: ST elevation (STEMI)
Stroke assessmentFAST: Face drooping, Arm weakness, Speech difficulty, Time to call
PediatricPediatric differences: smaller airways, higher HR, different drug doses
Obstetric emergencyEclampsia: MgSO4; PPH: uterine massage + oxytocin; shoulder dystocia: McRoberts

PART 3 - HOSPITAL-SPECIFIC TIPS

Apollo Hospitals

  • Focus on ACLS protocols, cardiac emergencies (MI, arrhythmias), code blue procedures
  • Know Apollo's 5-step patient safety protocol
  • They test infection control, hand hygiene (WHO 5 moments)
  • Ask about experience with cardiac monitoring, 12-lead ECG interpretation basics

CMC Vellore

  • Strong academic institution - expect theory-based written exam
  • Know drug mechanisms, not just doses
  • They value communication skills and ethical patient handling
  • May ask about tropical diseases (dengue, leptospirosis, malaria) management in emergency setting
  • Expect questions on academic protocols and evidence-based practice

Kavery Hospital

  • Cardiac and neuroscience specialty - know stroke codes, STEMI protocols, post-cardiac surgery monitoring
  • Know tPA indications for stroke (onset <4.5 hrs, BP <185/110, no hemorrhage on CT)
  • Familiarity with ICU monitoring equipment is valued

General Multi-Speciality Hospital

  • Be ready for questions on ALL areas: pediatric emergencies, obstetric emergencies, toxicology
  • Know poison management: paracetamol overdose (NAC), organophosphate (atropine + pralidoxime), opioid (naloxone), benzodiazepine (flumazenil)
  • Know hospital codes: Code Blue (cardiac arrest), Code Red (fire), Code Pink (infant abduction)

PART 4 - COMMONLY ASKED BEHAVIOURAL QUESTIONS

QuestionBest Approach
Tell me a challenging case you handledUse STAR method: Situation, Task, Action, Result
How do you handle disagreement with a doctor?Respectfully escalate, patient safety first, follow chain of command
Have you made a mistake at work?Own it, describe what you learned, show system improvement
How do you deal with a distressed family member?Empathy, clear communication, involve social work/chaplain if needed
Are you comfortable with night shifts?Yes, emergency care runs 24/7, you are flexible and committed

PART 5 - QUICK REVISION FLASHCARDS

  • Oxygen delivery: Nasal cannula 1-6 L (24-44%), Simple mask 6-10 L (35-60%), Non-rebreather 15 L (60-90%), BVM with O2 100%
  • Normal saline osmolarity: 308 mOsm/L
  • Shock BP threshold (adult): Systolic <90 mmHg or MAP <65 mmHg
  • Pediatric CPR depth: 1/3 of chest AP diameter (approx. 4 cm infant, 5 cm child)
  • ROSC signs: Palpable pulse, BP returns, spontaneous breathing, purposeful movements
  • Amiodarone: 300 mg IV for refractory VF/VT (second dose 150 mg)
  • Atropine: 0.5 mg IV for symptomatic bradycardia (max 3 mg total)
  • Morphine: 2-4 mg IV titrated for acute chest pain (use cautiously)
  • Adenosine: 6 mg rapid IV push for SVT (second dose 12 mg)
  • Needle decompression: 2nd intercostal space, midclavicular line for tension pneumothorax

Additional Preparation Resources

Watch this for top interview Q&A practice:

Final Tips:
  1. Carry your BLS/ACLS/EMT certificates to the interview
  2. Dress in formal attire (hospitals value professional appearance)
  3. Know the specific hospital's department structure and specialty focus
  4. Practice hands-on skills before the interview (CPR demonstration is sometimes asked)
  5. Review the latest AHA 2020 CPR Guidelines (still current for most Indian hospital exams)
  6. For CMC Vellore: expect a longer written test with case-based reasoning
  7. For Apollo: code blue simulation/scenario may be part of the selection process
Good luck with your interviews! The questions above cover approximately 90% of what is typically asked in Indian multi-speciality hospital paramedic/EMT recruitment exams.

Fully Details one by one complete ready for clear interview with in 10days

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Here is your complete, fully detailed 10-Day Interview Preparation Plan - one day at a time, topic by topic, with all questions and model answers.

EMT / PARAMEDIC - 10-DAY COMPLETE INTERVIEW PREP

Apollo | CMC Vellore | Kavery | Multi-Speciality Hospitals


DAY 1 - BASIC LIFE SUPPORT (BLS) & CPR


Q1. What is BLS? What are the steps of BLS for an adult?

Answer: BLS stands for Basic Life Support. It is the foundation of emergency care - keeping a patient alive when their breathing or heart has stopped, using only skills and minimal equipment until advanced help arrives.
Steps (Adult BLS - AHA 2020 Guidelines):
  1. Ensure scene safety - Look for hazards (fire, electricity, traffic) before approaching
  2. Check responsiveness - Tap shoulders firmly, shout "Are you okay?"
  3. Call for help - Shout for someone to call emergency services; if alone, call yourself; ask bystander to get AED
  4. Check breathing and pulse simultaneously - Look for chest rise; feel carotid pulse for no more than 10 seconds
  5. No pulse + no normal breathing - Begin CPR immediately
  6. Chest compressions:
    • Place heel of one hand on center of chest (lower half of sternum)
    • Place second hand on top, fingers interlaced
    • Keep arms straight, compress at least 5 cm (2 inches) but not more than 6 cm
    • Rate: 100-120 compressions per minute
    • Allow full chest recoil after each compression - do not lean on chest
  7. Ventilations:
    • Give 2 breaths after every 30 compressions (30:2 ratio)
    • Each breath should take 1 second; visible chest rise
    • If unable/unwilling to give breaths: hands-only CPR is acceptable for bystanders
  8. Attach AED as soon as it arrives - Turn on, follow voice prompts
  9. Continue CPR until: ROSC (return of spontaneous circulation), ALS team takes over, or patient is declared

Q2. What is the CPR ratio for adults, children, and infants?

Patient1 Rescuer2 RescuersRate
Adult30:230:2100-120/min
Child (1 yr - puberty)30:215:2100-120/min
Infant (<1 yr)30:215:2100-120/min
  • Once advanced airway is placed (ETT): give 1 breath every 6 seconds (10/min) without stopping compressions
(Source: Tintinalli's Emergency Medicine; Rosen's Emergency Medicine)

Q3. What is the compression depth for adults, children, and infants?

PatientDepth
AdultAt least 5 cm, no more than 6 cm
ChildAt least 5 cm (about 1/3 AP diameter of chest)
InfantAbout 4 cm (at least 1/3 AP diameter)

Q4. How do you use an AED?

Steps:
  1. Turn on the AED (open lid or press power button)
  2. Attach pads: one below right collarbone, one on left side below armpit
  3. AED analyzes rhythm - do NOT touch patient during analysis
  4. If shockable rhythm (VF or pulseless VT): AED announces "Shock advised" - ensure everyone is clear, press shock button
  5. Immediately resume CPR for 2 minutes after shock
  6. AED will re-analyze after 2 minutes - repeat if advised

Q5. What is the "chain of survival"?

  • Early recognition and call for help
  • Early CPR
  • Early defibrillation
  • Early advanced care (ALS)
  • Post-resuscitation care

DAY 2 - AIRWAY MANAGEMENT


Q6. What are the steps to assess and manage an airway?

Assessment (Look, Listen, Feel):
  • Look - Chest rise, use of accessory muscles, cyanosis, foreign body
  • Listen - Stridor (upper obstruction), gurgling (secretions), wheeze (lower), silence (complete obstruction)
  • Feel - Air movement at mouth and nose
Management (in order of escalation):
Step 1 - Manual airway maneuvers:
  • Head tilt-chin lift - For non-trauma patients
  • Jaw thrust - For trauma patients (suspected cervical spine injury) - this is the SAFEST maneuver
Step 2 - Airway adjuncts:
  • OPA (Oropharyngeal Airway / Guedel Airway): Used in unconscious patients with no gag reflex. Size = distance from corner of mouth to earlobe. Insert inverted then rotate 180 degrees (adults)
  • NPA (Nasopharyngeal Airway): Can be used in semiconscious patients. Contraindicated in basal skull fracture. Lubricate before inserting
Step 3 - BVM (Bag-Valve-Mask):
  • Use E-C clamp technique to seal mask
  • Give one breath over 1 second; see chest rise
  • Two-person technique preferred (one holds mask, one squeezes bag)
Step 4 - Advanced airway:
  • ETT (Endotracheal Tube) - Gold standard for definitive airway
  • Supraglottic airways: LMA (Laryngeal Mask Airway), i-gel - used when intubation not possible
(Source: Tintinalli's Emergency Medicine - Airway Management)

Q7. When do you intubate a patient?

Indications:
  • GCS ≤8 (cannot protect own airway)
  • Respiratory failure (SpO2 <90% despite high-flow O2)
  • Anticipated airway loss (facial burns, angioedema, epiglottitis)
  • Need for deep sedation/paralysis
  • Prevention of aspiration in unconscious patient

Q8. How do you confirm ETT placement?

Primary confirmation:
  • Waveform capnography (ETCO2) - GOLD STANDARD - consistent CO2 waveform confirms tracheal placement
  • Bilateral equal breath sounds on auscultation
  • Absence of sounds over epigastrium (stomach)
  • Visible bilateral chest rise
Secondary confirmation:
  • Chest X-ray (ETT tip should be 2-3 cm above carina, at level of aortic knob)
  • Improving SpO2

Q9. What is RSI (Rapid Sequence Intubation)?

RSI is a technique to secure the airway quickly using sedation + paralysis to minimize aspiration risk.
7 Ps of RSI:
  1. Preparation - Equipment ready (laryngoscope, ETT sizes, suction, BVM, drugs drawn up)
  2. Preoxygenation - 100% O2 for 3-5 minutes; BVM if inadequate
  3. Pretreatment - Atropine (pediatrics, to prevent bradycardia); lidocaine (head injury, to blunt ICP rise)
  4. Paralysis with induction - Give sedative + neuromuscular blocker simultaneously
  5. Protection - Sellick's maneuver (cricoid pressure) - now controversial
  6. Placement - Intubate, confirm with ETCO2
  7. Post-intubation management - Secure tube, ventilate, sedation
Common Drug Combinations:
  • Etomidate 0.3 mg/kg IV + Succinylcholine 1.5 mg/kg IV (most common)
  • Ketamine 1-2 mg/kg IV + Succinylcholine (hemodynamically unstable patients)
  • If succinylcholine contraindicated (hyperkalemia, burns >48h): use Rocuronium 1.2 mg/kg IV

Q10. What is the difference between stridor and wheeze?

FeatureStridorWheeze
LocationUpper airway (larynx/trachea)Lower airway (bronchi)
Sound qualityHigh-pitched, crowingMusical, polyphonic
PhaseUsually inspiratoryUsually expiratory
CausesCroup, epiglottitis, foreign body, anaphylaxis, post-extubationAsthma, COPD, bronchiolitis
SeverityIndicates partial obstruction - URGENTVariable

DAY 3 - CARDIAC EMERGENCIES & ECG BASICS


Q11. What are the 4 cardiac arrest rhythms? Which are shockable?

RhythmShockable?Treatment
Ventricular Fibrillation (VF)YESImmediate defibrillation
Pulseless Ventricular Tachycardia (pVT)YESImmediate defibrillation
Pulseless Electrical Activity (PEA)NOCPR + treat reversible causes (4H4T)
Asystole (flatline)NOCPR + epinephrine + treat reversible causes

Q12. What are the defibrillation energy settings?

Device TypeEnergy
Monophasic defibrillator360 Joules (always, for all shocks)
Biphasic defibrillator120-200 Joules (manufacturer-specific; 200J if unknown)
AEDAutomatic selection
Internal defibrillation (open chest)10 Joules
(Source: Pfenninger and Fowler's Procedures for Primary Care)

Q13. What is the ACLS algorithm for cardiac arrest?

Shockable rhythm (VF/pVT):
  1. Start CPR - push hard and fast
  2. Defibrillate (shock)
  3. Resume CPR immediately x 2 min
  4. Epinephrine 1 mg IV/IO every 3-5 min
  5. After 3rd shock: Amiodarone 300 mg IV (2nd dose: 150 mg)
  6. Reassess rhythm every 2 minutes
  7. Treat reversible causes (4H4T)
Non-shockable rhythm (PEA/Asystole):
  1. Start CPR - push hard and fast
  2. Epinephrine 1 mg IV/IO every 3-5 min
  3. Treat reversible causes (4H4T)
  4. Reassess rhythm every 2 minutes
(Source: Fuster and Hurst's The Heart - ACLS algorithm)

Q14. What are the 4Hs and 4Ts (reversible causes of cardiac arrest)?

4 Hs:
  • Hypovolemia - give fluids/blood
  • Hypoxia - ensure adequate oxygenation
  • Hypo/Hyperkalemia (and other electrolytes) - correct electrolytes
  • Hypothermia - warm the patient
4 Ts:
  • Tension pneumothorax - needle decompression
  • Tamponade (cardiac) - pericardiocentesis
  • Toxins/drugs - specific antidotes
  • Thrombosis (PE or MI) - thrombolysis/PCI

Q15. What are the signs of STEMI on ECG?

  • ST elevation > 1mm in 2 or more contiguous limb leads, OR > 2mm in contiguous chest leads
  • New LBBB (Left Bundle Branch Block) - treat as STEMI equivalent
  • Q waves (pathological) = old infarct
Localization:
LocationLeads
Anterior MIV1-V4
Inferior MIII, III, aVF
Lateral MII, aVL, V5-V6
Posterior MIReciprocal changes in V1-V2

Q16. What is the MONA protocol for acute MI?

M - Morphine 2-4 mg IV (for pain, use cautiously - can mask ischemia) O - Oxygen (only if SpO2 <94%) N - Nitrates (GTN sublingual 0.4 mg) - contraindicated if BP <90 systolic A - Aspirin 300 mg chewable (immediately, unless contraindicated)
Plus: PPCI (Percutaneous Coronary Intervention) is the gold standard within 90 minutes of first medical contact. If PCI not available within 120 min: thrombolysis with streptokinase/tPA.

Q17. What are common arrhythmias and their first-line treatment?

ArrhythmiaKey FeatureFirst-Line Treatment
SVT (Supraventricular Tachycardia)Narrow QRS, rate 150-250Vagal maneuvers; then Adenosine 6 mg IV rapid push
Atrial FibrillationIrregularly irregular, no P wavesRate control: metoprolol/diltiazem; Rhythm control: cardioversion
Symptomatic BradycardiaHR <60, hypotension, syncopeAtropine 0.5 mg IV (repeat up to 3 mg)
Stable VT with pulseWide QRS, rate 100-250Amiodarone 150 mg IV over 10 min
Torsades de PointesPolymorphic VT, prolonged QTcMagnesium sulfate 2g IV

DAY 4 - TRAUMA MANAGEMENT (ATLS/PHTLS)


Q18. What is the primary survey in trauma? (CABCDE)

The ATLS/PHTLS primary survey rapidly identifies and treats life-threatening injuries:
C - Catastrophic Hemorrhage Control (STOP THE BLEED)
  • Apply direct pressure or tourniquet for life-threatening external bleeding FIRST
  • Tourniquet: apply 5-7 cm above wound; note time of application
A - Airway with C-Spine Protection
  • Open airway using jaw thrust (NOT head tilt in trauma)
  • Apply cervical collar if mechanism of injury suggests spinal injury
  • Remove foreign bodies, suction blood/secretions
  • Intubate if airway compromised
B - Breathing and Ventilation
  • Expose chest; count respiratory rate; check SpO2
  • Check for: tension pneumothorax, open chest wound, flail chest, massive hemothorax
  • Give high-flow O2
C - Circulation and Hemorrhage Control
  • Check pulse quality (radial = SP >80; femoral = SP >70; carotid = SP >60)
  • Control external bleeding
  • Establish 2 large-bore IV lines (14-16G); draw bloods
  • Fluid resuscitation (NS or LR bolus 1L); blood if hemorrhagic shock
D - Disability (Neurological)
  • GCS; AVPU; pupils (size, reactivity, equality)
  • Blood glucose
E - Exposure and Environment
  • Remove ALL clothing to look for ALL injuries
  • Log-roll to check back and spine
  • Cover with warm blanket to prevent hypothermia
(Source: Tintinalli's Emergency Medicine; Current Surgical Therapy; Mulholland and Greenfield's Surgery)

Q19. What are the classes of hemorrhagic shock?

ClassBlood lossHRBPRRUrine outputMental status
I<15% (<750 mL)<100Normal14-20>30 mL/hrNormal
II15-30% (750-1500 mL)100-120Normal20-3020-30 mL/hrAnxious
III30-40% (1500-2000 mL)120-140Decreased30-405-15 mL/hrConfused
IV>40% (>2000 mL)>140Very low>35NegligibleLethargy/Coma
Class III and IV require immediate blood transfusion - not just crystalloids.

Q20. What is tension pneumothorax? How do you treat it?

Signs (TENSION = TIME CRITICAL - DO NOT WAIT FOR CXR):
  • Severe respiratory distress
  • Absent breath sounds on one side
  • Tracheal deviation to OPPOSITE side (late sign)
  • Hypotension
  • Distended neck veins (JVD)
  • Tachycardia
Immediate Treatment:
  • Needle thoracostomy (decompression): Insert 14-16G cannula into 2nd intercostal space, midclavicular line (or 4th/5th ICS, anterior axillary line). Hiss of air confirms diagnosis.
  • Follow with formal chest drain (intercostal tube) insertion: 5th ICS, midaxillary line
(Source: Tintinalli's Emergency Medicine - Breathing section)

Q21. What is the FAST exam in trauma?

FAST = Focused Assessment with Sonography in Trauma
A bedside ultrasound scan to detect free fluid (blood) in 4 areas:
  • Pericardial - around heart (cardiac tamponade)
  • Right upper quadrant (Morrison's pouch) - liver/kidney
  • Left upper quadrant (Splenorenal space) - spleen/kidney
  • Pelvic (Pouch of Douglas/Rectovesical) - free pelvic fluid
Extended FAST (eFAST): also looks for pneumothorax (lung sliding)
Positive FAST in unstable patient = emergency surgery needed.

DAY 5 - SHOCK MANAGEMENT


Q22. What is shock? What are the types?

Definition: Shock is a state of circulatory failure resulting in inadequate oxygen delivery to meet tissue metabolic demands, leading to cellular dysfunction and organ failure.
Types:
1. Hypovolemic Shock
  • Cause: Blood loss (hemorrhage), fluid loss (dehydration, burns, vomiting)
  • Signs: Tachycardia, hypotension, cool clammy skin, decreased urine output
  • Treatment: Stop bleeding; IV fluids (crystalloids then blood products)
2. Distributive Shock (most common type overall)
  • Septic shock: Infection -> vasodilation -> hypotension. BP <90 despite fluids; Norepinephrine is vasopressor of choice. Cultures + antibiotics within 1 hour
  • Anaphylactic shock: Allergen -> massive histamine release. IM Epinephrine 0.3-0.5 mg FIRST LINE; fluids; antihistamines; steroids
  • Neurogenic shock: Spinal cord injury -> loss of sympathetic tone. Bradycardia + hypotension (no tachycardia). Atropine + vasopressors
3. Cardiogenic Shock
  • Cause: Pump failure (massive MI, severe heart failure, myocarditis)
  • Signs: Hypotension, tachycardia, pulmonary edema (wet and cold)
  • Treatment: Identify and treat cause; inotropes (dobutamine); IABP if needed; PPCI for MI
4. Obstructive Shock
  • Cause: Physical obstruction to blood flow
  • Tension pneumothorax: needle decompression
  • Cardiac tamponade: pericardiocentesis
  • Massive PE: thrombolysis (alteplase)

Q23. How do you differentiate cardiogenic from septic shock?

FeatureCardiogenicSeptic
SkinCold, mottled, paleWarm, flushed (early)
JVD / Lung soundsRaised JVP, crackles, S3Low JVP, clear lungs
TemperatureNormal/lowFever or hypothermia
Cardiac outputLowHigh (initially)
Pulse pressureNarrowWide (early)

DAY 6 - NEUROLOGICAL EMERGENCIES


Q24. What is GCS and how do you score it?

Glasgow Coma Scale (GCS):
ComponentResponseScore
Eye Opening (E)Spontaneous4
To voice3
To pain2
None1
Verbal (V)Oriented5
Confused4
Inappropriate words3
Incomprehensible sounds2
None1
Motor (M)Obeys commands6
Localizes pain5
Withdraws4
Abnormal flexion (decorticate)3
Extension (decerebrate)2
None1
  • Total range: 3 (worst) to 15 (normal)
  • Mild TBI: 13-15 | Moderate TBI: 9-12 | Severe TBI: 3-8
  • Intubation threshold: GCS ≤8

Q25. What is the FAST test for stroke?

F - Facial drooping (ask patient to smile - does one side droop?) A - Arm weakness (ask to raise both arms - does one drift down?) S - Speech difficulty (slurred, garbled, unable to speak or understand) T - Time to call emergency services - IMMEDIATELY
Additional: BE-FAST adds:
  • Balance (sudden loss of balance)
  • Eyes (sudden vision loss or double vision)

Q26. What is the treatment for ischemic stroke?

Time is brain - every minute of delay = 1.9 million neurons lost
Immediate steps:
  1. ABC assessment; O2 if SpO2 <94%
  2. IV access; blood glucose (hypoglycemia mimics stroke - check!)
  3. Urgent non-contrast CT brain (to exclude hemorrhage)
  4. 12-lead ECG
Thrombolysis (tPA/Alteplase) criteria:
  • Ischemic stroke confirmed on CT (no bleed)
  • Onset of symptoms within 4.5 hours
  • Age >18
  • BP <185/110 mmHg (control BP first if needed)
  • No contraindications (recent surgery, active bleeding, anticoagulants, prior stroke <3 months)
  • Dose: 0.9 mg/kg IV (max 90 mg); 10% as bolus, rest over 60 min
Mechanical thrombectomy:
  • Large vessel occlusion (MCA, basilar)
  • Up to 24 hours from onset (selected patients)

Q27. What is status epilepticus? How do you manage it?

Definition: Seizure lasting >5 minutes OR 2+ seizures without regaining consciousness between them.
Management (time-based):
  • 0-5 min: Position patient (lateral), protect from injury, O2, suction, IV access, check BGL
  • 5-20 min (1st line): IV/IM Benzodiazepine - Lorazepam 0.1 mg/kg IV (or Diazepam 0.15 mg/kg IV or Midazolam 0.2 mg/kg IM)
  • 20-40 min (2nd line): IV Phenytoin 20 mg/kg (or Levetiracetam 60 mg/kg, or Valproate 40 mg/kg)
  • 40-60 min (refractory): Intubation + IV Phenobarbital or Propofol/Midazolam infusion
  • Treat underlying cause: hypoglycemia (D50), hyponatremia, infection, toxins

DAY 7 - TOXICOLOGY & ANTIDOTES


Q28. What are the key antidotes every EMT must know?

Poison / DrugAntidoteNotes
Paracetamol (acetaminophen) overdoseN-Acetylcysteine (NAC)Give within 8 hours for best effect
Opioid overdose (morphine, heroin)Naloxone (Narcan) 0.4-2 mg IV/IM/INRepeat every 2-3 min; short acting
Benzodiazepine overdoseFlumazenil 0.2 mg IVCaution: can precipitate seizures
Organophosphate/Carbamate poisoningAtropine + Pralidoxime (2-PAM)Atropine: large doses to dry secretions; Pralidoxime within 24-48 hours
Beta-blocker overdoseGlucagon + high-dose insulinIV calcium; atropine for bradycardia
Digoxin toxicityDigibind (Fab fragments)
Carbon monoxide poisoning100% O2 (hyperbaric if severe)
Cyanide poisoningHydroxocobalamin (or sodium thiosulfate)
Iron overdoseDeferoxamine
Heparin overdoseProtamine sulfate
Warfarin overdoseVitamin K + FFP
(Source: Goodman & Gilman's Pharmacology; Henry's Clinical Diagnosis)

Q29. What are the signs of organophosphate poisoning? (DUMBBELS)

DUMBBELS mnemonic (cholinergic toxidrome - excess acetylcholine):
  • D - Diarrhea
  • U - Urination (incontinence)
  • M - Miosis (pinpoint pupils)
  • B - Bradycardia
  • B - Bronchospasm/Bronchorrhea (wheezing, wet secretions)
  • E - Emesis (vomiting)
  • L - Lacrimation (excessive tearing)
  • S - Salivation (excessive drooling)
Plus: Muscle fasciculations, weakness (nicotinic effects)
Treatment:
  1. Remove from exposure; decontaminate (remove clothes, wash skin)
  2. Airway management (suction secretions heavily)
  3. Atropine 2-4 mg IV every 5-10 min until secretions dry (endpoint = dry secretions, NOT pupils)
  4. Pralidoxime (2-PAM) 1-2g IV over 15-30 min (within 24-48 hours of exposure)
(Source: Lippincott's Pharmacology; Henry's Clinical Diagnosis)

Q30. What are the signs of opioid overdose? How do you treat it?

Opioid toxidrome triad:
  • Pinpoint pupils (miosis)
  • Respiratory depression (slow, shallow breathing)
  • Decreased consciousness (sedation/coma)
Treatment:
  1. Airway - open, suction; BVM if not breathing
  2. O2 high flow
  3. Naloxone (Narcan) 0.4-2 mg IV/IM/intranasal - repeat every 2-3 minutes
  4. Watch for re-sedation (naloxone has shorter half-life than most opioids) - may need infusion or repeat doses
  5. Transport to hospital

DAY 8 - PEDIATRIC & OBSTETRIC EMERGENCIES


Q31. What are normal vital signs for different age groups?

AgeHR (bpm)RR (per min)Systolic BP (mmHg)
Neonate (0-1 mo)120-16040-6060-90
Infant (1-12 mo)100-16030-6070-100
Toddler (1-3 yr)90-15024-4080-110
Preschool (3-5 yr)80-14022-3480-110
School age (6-12 yr)70-12018-3090-120
Adolescent (>12 yr)60-10012-20100-130
Adult60-10012-2090-130
Memory trick for pediatric SBP lower limit: 70 + (2 x age in years)

Q32. How do you manage febrile seizures in a child?

Febrile seizure: Seizure in child aged 6 months - 5 years triggered by fever (>38°C), lasting <15 min, generalized, single in 24 hours = Simple febrile seizure (benign, good prognosis)
Management:
  1. Safety - protect child, lateral position
  2. Airway management - suction, O2
  3. Time the seizure
  4. If seizure >5 min: Diazepam 0.5 mg/kg rectal / 0.1-0.2 mg/kg IV or Midazolam 0.1 mg/kg IM/buccal
  5. Treat fever: paracetamol/ibuprofen, tepid sponging
  6. Investigate cause of fever; LP if first seizure in infant <12 months

Q33. What are obstetric emergencies an EMT must know?

1. Eclampsia:
  • Seizures in a pregnant woman (>20 weeks) with pre-eclampsia (hypertension + proteinuria)
  • Treatment: MgSO4 4g IV loading dose over 15 min, then 1-2g/hr infusion; control BP (labetalol/hydralazine); deliver the baby
2. Postpartum Hemorrhage (PPH) - most common cause of maternal mortality:
  • Blood loss >500 mL after vaginal delivery or >1000 mL after C-section
  • 4 Ts of causes: Tone (atony), Tissue (retained placenta), Trauma (lacerations), Thrombin (coagulopathy)
  • Treatment: Uterine massage, Oxytocin 10 IU IM immediately after delivery, bimanual compression, fluids
3. Shoulder Dystocia (delivery emergency):
  • Head delivered but shoulders are stuck (anterior shoulder behind pubic symphysis)
  • HELPERR mnemonic: Help, Episiotomy, Legs (McRoberts maneuver - flex hips), Pressure (suprapubic pressure), Enter (rotational maneuvers), Remove posterior arm, Roll to all-fours
4. Cord Prolapse:
  • Umbilical cord comes out before baby - emergency!
  • Do NOT push cord back; elevate presenting part; knee-chest position; immediate C-section

DAY 9 - MEDICAL EMERGENCIES (QUICK MCQ FACTS)


Q34. What are the signs and treatment of pulmonary embolism (PE)?

Signs:
  • Sudden onset dyspnea (most common symptom)
  • Pleuritic chest pain
  • Hemoptysis
  • Tachycardia, hypotension (massive PE)
  • Raised JVP
  • ECG: Sinus tachycardia (most common); S1Q3T3 pattern; new RBBB
Wells Score - helps determine PE probability
Treatment:
  • O2, IV access, monitor
  • Anticoagulation: Heparin (LMWH or unfractionated heparin) immediately
  • Massive PE with cardiac arrest/hemodynamic instability: Thrombolysis (Alteplase 100 mg IV over 2 hours)
  • Surgical embolectomy if thrombolysis fails

Q35. How do you manage a diabetic emergency?

Hypoglycemia (BGL <70 mg/dL or <3.9 mmol/L):
  • Conscious patient: 15g fast-acting carbohydrates orally (sugar water, glucose tablets)
  • Unconscious/cannot swallow: 50 mL of 50% Dextrose IV (D50W) OR Glucagon 1mg IM
  • Recheck BGL after 15 min; give complex carbs after recovery
Diabetic Ketoacidosis (DKA) - Type 1:
  • Signs: Hyperglycemia (>250 mg/dL), Kussmaul breathing, fruity breath, nausea, dehydration, BGL >250 + ketones + acidosis (pH <7.3)
  • Treatment: IV fluids (NS 1L/hr first); insulin infusion; potassium replacement; monitor electrolytes
Hyperosmolar Hyperglycemic State (HHS) - Type 2:
  • BGL >600 mg/dL, no significant ketosis; severe dehydration
  • Treatment: Aggressive IV fluids; slow correction

Q36. What is the management of acute severe asthma?

Signs of life-threatening asthma:
  • Cannot speak full sentences
  • SpO2 <92%
  • Silent chest (no air entry)
  • Cyanosis
  • Exhaustion, altered consciousness
Treatment:
  1. Sit patient upright
  2. High-flow O2 (target SpO2 94-98%)
  3. Salbutamol (Albuterol) MDI with spacer OR nebulizer 2.5-5 mg - repeat every 20 min
  4. Ipratropium bromide 0.5 mg nebulized with salbutamol
  5. Oral/IV Prednisolone 40-50 mg (or hydrocortisone 200 mg IV)
  6. MgSO4 2g IV over 20 min (for severe/life-threatening)
  7. Prepare for intubation if deteriorating (most dangerous - will crash after intubation)

Q37. What is the difference between cardiac tamponade and tension pneumothorax?

FeatureCardiac TamponadeTension Pneumothorax
CauseBlood/fluid in pericardiumAir trapped in pleural space
TracheaMidlineDeviated AWAY from affected side
Breath soundsNormal (bilateral)Absent on AFFECTED side
JVPRaisedRaised
Beck's TriadYES: Hypotension + Raised JVP + Muffled heart soundsNO
TreatmentPericardiocentesisNeedle decompression

DAY 10 - HOSPITAL CODES, INFECTION CONTROL & FINAL REVISION


Q38. What are hospital emergency codes?

CodeMeaning
Code BlueAdult cardiac/respiratory arrest
Code PinkPediatric cardiac/respiratory arrest
Code RedFire emergency
Code YellowInternal disaster / mass casualty
Code BlackBomb threat
Code WhiteViolent patient/aggressive behavior
Code OrangeHazardous material spill
Code PurpleInfant/child abduction
Code GrayMissing patient

Q39. What are the WHO 5 Moments of Hand Hygiene?

  1. Before touching a patient
  2. Before a clean/aseptic procedure
  3. After body fluid exposure risk
  4. After touching a patient
  5. After touching patient surroundings
Technique: 6-step hand rub (ABHS/soap) for minimum 20-30 seconds (alcohol) or 40-60 seconds (soap and water)

Q40. What are universal precautions in emergency care?

Universal precautions assume ALL patients are potentially infectious:
  • Wear gloves for any contact with blood, body fluids, or mucous membranes
  • Wear mask + eye protection for risk of splashing
  • Wear gown for heavy contamination risk
  • Never recap needles by hand (needle-stick prevention)
  • Dispose sharps in puncture-proof containers
  • Report all needle-stick injuries immediately

Q41. What is the SBAR communication tool?

Used for handover/escalation in hospitals:
  • S - Situation: "This is [name], I am calling about patient [name] in Bed [X]"
  • B - Background: Age, diagnosis, relevant history
  • A - Assessment: "I think the problem is..." with vital signs
  • R - Recommendation: "I need you to come urgently / order X medication / check the patient"

Q42. What is documentation in emergency care and why is it important?

Key principles:
  • Document in real time or as soon as possible
  • Include: time of events, vital signs, interventions, drugs given (dose, route, time), patient response
  • Use objective language ("Patient GCS 8" not "Patient was unresponsive")
  • Medicolegal document - never erase; strike through errors with single line and initial
  • MIST handover: Mechanism, Injuries, Signs/vitals, Treatment given

FINAL 10-DAY STUDY SCHEDULE

DayTopicRevision Focus
Day 1BLS & CPRRatios, depths, AED, chain of survival
Day 2Airway ManagementOPA/NPA, BVM, ETT, RSI, ETCO2
Day 3Cardiac EmergenciesRhythms, ACLS, defibrillation, STEMI, arrhythmias
Day 4Trauma (ATLS/PHTLS)CABCDE, hemorrhagic shock classes, tension PTX, FAST
Day 5Shock Management4 types, vasopressors, fluid resuscitation
Day 6Neurological EmergenciesGCS, stroke, seizure, status epilepticus
Day 7Toxicology & AntidotesDUMBBELS, key antidotes table, opioid/OPC/paracetamol
Day 8Pediatric & ObstetricVital signs, febrile seizure, eclampsia, PPH, shoulder dystocia
Day 9Medical EmergenciesPE, DKA, asthma, tamponade vs PTX, diabetes
Day 10Hospital Protocols + RevisionCodes, hand hygiene, SBAR, documentation, SAMPLE, mock questions

TOP 20 MCQ REVISION FACTS (Read daily)

  1. CPR rate: 100-120/min | Depth (adult): 5-6 cm
  2. Adult CPR ratio: 30:2 | Child 2-rescuer: 15:2
  3. Defibrillation (monophasic): 360 J | Biphasic: 200 J
  4. Epinephrine in cardiac arrest: 1 mg IV every 3-5 min
  5. Amiodarone for refractory VF/VT: 300 mg IV (2nd dose: 150 mg)
  6. Adenosine for SVT: 6 mg IV rapid push (2nd dose: 12 mg)
  7. Atropine for bradycardia: 0.5 mg IV (max 3 mg)
  8. GCS intubation threshold: ≤8
  9. Stroke tPA window: 4.5 hours from symptom onset
  10. Anaphylaxis first-line drug: Epinephrine IM 0.3-0.5 mg (1:1000)
  11. Organophosphate antidote: Atropine + Pralidoxime
  12. Paracetamol antidote: N-Acetylcysteine
  13. Opioid antidote: Naloxone 0.4-2 mg
  14. Tension PTX: needle at 2nd ICS, MCL
  15. MONA = Morphine, Oxygen, Nitrates, Aspirin (for MI)
  16. Normal SpO2: 95-100% | Give O2 if <94%
  17. Normal adult HR: 60-100 | RR: 12-20 | BP: 90-120/60-80
  18. Status epilepticus: first drug = Lorazepam or Diazepam IV
  19. PPH treatment: Oxytocin 10 IU IM
  20. Eclampsia treatment: MgSO4 4g IV loading dose

SAMPLE ANSWER TEMPLATE FOR SCENARIO QUESTIONS

Whenever they give you a clinical scenario, always answer in this order:
  1. Scene safety - Is it safe to approach?
  2. Call for help - Activate team/emergency response
  3. Primary assessment - ABCDE or CABCDE
  4. Identify the problem - Name the condition
  5. Immediate interventions - In order of priority
  6. Monitoring - Vital signs, SpO2, ECG, ETCO2
  7. Drugs - Drug name, dose, route, timing
  8. Reassessment - Did patient respond? What next?
  9. Handover/documentation - SBAR or MIST
This structure shows the interviewer you are organized, systematic, and safe - exactly what hospitals like Apollo, CMC Vellore, Kavery want to see.

Sources: Tintinalli's Emergency Medicine | Rosen's Emergency Medicine | Miller's Anesthesia | Goodman & Gilman's Pharmacology | The Washington Manual of Medical Therapeutics | Current Surgical Therapy | Lippincott's Pharmacology | AHA 2020 CPR Guidelines
Best of luck with your interviews! Study one day at a time, practice speaking answers aloud, and stay confident.

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Here is the complete continuation - Day 2 through Day 10 - fully detailed with every question and model answer.

DAY 2 - AIRWAY MANAGEMENT (COMPLETE)


Q1. What are the types of airway adjuncts and how do you use them?

OPA - Oropharyngeal Airway (Guedel Airway)

Purpose: Keeps tongue from falling back and blocking airway in unconscious patients.
Indications:
  • Unconscious patient with NO gag reflex
  • To maintain airway during BVM ventilation
Contraindications:
  • Conscious or semi-conscious patient (stimulates gag reflex - causes vomiting and aspiration)
  • Intact gag reflex
Sizing:
  • Measure from corner of mouth to earlobe OR center of mouth to angle of jaw
  • Sizes: 000 (neonate) to 5 (large adult)
  • Wrong size = worsens obstruction. Too small pushes tongue back. Too large stimulates larynx.
Insertion technique (adult):
  1. Select correct size
  2. Open mouth (cross-finger or jaw-thrust technique)
  3. Insert OPA upside down (curved tip pointing UP toward palate)
  4. Advance until resistance felt at hard-soft palate junction
  5. Rotate 180 degrees so curve follows tongue
  6. Ensure flange rests on lips
Insertion technique (child/infant):
  • Insert with tongue depressor directly (curved tip pointing DOWN) - do NOT rotate, risk of trauma

NPA - Nasopharyngeal Airway (Nasal Trumpet)

Purpose: Provides airway passage through nose, past tongue and soft palate.
Indications:
  • Patients who are semiconscious (intact gag reflex) - better tolerated than OPA
  • Trismus (clenched teeth - jaw cannot open)
  • Seizure patients (teeth clenched)
Contraindications:
  • Suspected basal skull fracture (risk of entering cranial vault) - signs: raccoon eyes, Battle's sign, CSF from nose/ears
  • Severe nasal trauma or obstruction
  • Anticoagulation (relative - risk of epistaxis)
Sizing:
  • Length: nostril to earlobe
  • Diameter: matches patient's little finger OR largest that fits comfortably
Insertion technique:
  1. Lubricate generously with water-based gel
  2. Insert into the right nostril (bevel toward septum) - left nostril if right blocked
  3. Advance gently along the floor of the nasal passage (not upward!)
  4. If resistance: do NOT force; try other nostril or smaller size
  5. Correctly placed: tip in oropharynx behind tongue

Q2. Explain the BVM technique in detail.

BVM = Bag-Valve-Mask - used to provide positive pressure ventilation when patient is not breathing adequately.
Components:
  • Self-inflating bag (450 mL pediatric / 1600 mL adult)
  • One-way valve
  • Mask (transparent, cushioned, sizes 0-5)
  • Oxygen reservoir bag attached = delivers close to 100% O2
One-person BVM technique (E-C Clamp):
  • C = Thumb and index finger form a C, pressing mask firmly onto face (apex over nose bridge, base between lower lip and chin)
  • E = Remaining 3 fingers form an E, hooking under mandible (lower jaw) to perform jaw thrust
  • Other hand squeezes bag
  • Give 1 breath every 5-6 seconds (10-12/min) for adults
  • Each breath: 1 second; visible chest rise; do NOT over-ventilate
Two-person BVM technique (PREFERRED):
  • Person 1: Both hands on mask using two-thumb E-C or thenar eminence technique = better seal
  • Person 2: Squeezes bag
  • Far superior seal, reduces air leaks
Volume:
  • Adults: squeeze enough to see chest rise (~500-600 mL)
  • Do NOT give excessive volumes - causes gastric insufflation and aspiration
Oxygen flow:
  • Without reservoir: ~40-60% O2
  • With reservoir bag at 15 L/min flow: ~90-100% O2

Q3. What is the difference between LMA, i-gel, and ETT?

FeatureLMA (Laryngeal Mask Airway)i-gelETT (Endotracheal Tube)
TypeSupraglottic airwaySupraglottic airwayDefinitive airway
CuffInflatable cuffNo cuff (gel-filled)Inflatable cuff
InsertionBlind, over tongueBlind, simple insertionRequires laryngoscopy
Aspiration protectionPartialPartialFull (when cuffed)
Skill requiredModerateEasyAdvanced
Use whenETT difficult/failedQuick emergency airwayDefinitive, prolonged ventilation
Gold standardNoNoYES

Q4. What is a surgical airway and when is it needed?

Surgical airway is required when ALL other airway methods have failed - the "can't intubate, can't oxygenate" (CICO) scenario.

Needle Cricothyrotomy:

  • Insert 14G or 16G IV cannula through cricothyroid membrane (between thyroid and cricoid cartilage)
  • Aspirate air to confirm tracheal placement
  • Attach O2 tubing (jet ventilation)
  • Provides temporary oxygenation (15-45 minutes maximum)
  • Allows oxygenation but NOT adequate ventilation (CO2 builds up)

Surgical Cricothyrotomy:

  • Identify cricothyroid membrane (landmark: notch below thyroid cartilage)
  • Make horizontal stab incision through skin and membrane
  • Insert tracheostomy tube or small ETT (size 6.0)
  • Inflate cuff, confirm with ETCO2
  • This IS a definitive (though temporary) airway
Landmarks: Place finger on Adam's apple (thyroid cartilage notch) - slide finger down to soft depression = cricothyroid membrane
(Source: Washington Manual of Medical Therapeutics - Surgical Airways)

Q5. What are the signs of a difficult airway? (LEMON assessment)

LEMON mnemonic - predict difficult intubation before attempting:
  • L - Look externally: beard, short neck, obesity, facial burns, trauma, small mouth
  • E - Evaluate 3-3-2 rule:
    • 3 fingers between upper and lower teeth (mouth opening)
    • 3 fingers between hyoid bone and chin
    • 2 fingers between notch of thyroid cartilage and floor of mouth
  • M - Mallampati score: Open mouth, protrude tongue, look for uvula/palate visibility
    • Class I (all visible) = easy; Class IV (nothing visible) = very difficult
  • O - Obstruction: foreign body, hematoma, epiglottitis, abscess
  • N - Neck mobility: limited (c-spine injury, ankylosing spondylitis, cervical collar)
If LEMON predicts difficult airway: prepare video laryngoscope, surgical airway kit, and senior help BEFORE attempting intubation

Q6. What oxygen delivery devices are there and what FiO2 do they deliver?

DeviceFlow RateFiO2 (%)Notes
Nasal Cannula1-6 L/min24-44%Add 4% FiO2 per L/min above 21%
Simple Face Mask5-10 L/min35-50%Minimum 5 L/min to flush CO2
Venturi MaskFixed flow24%, 28%, 35%, 40%, 60%Most accurate FiO2; use in COPD
Non-Rebreather Mask (NRM)10-15 L/min60-90%One-way valve; reservoir bag inflated first
BVM with O2 reservoir15 L/min~100%Positive pressure ventilation
Key clinical points:
  • In COPD: target SpO2 88-92% (risk of hypercapnic respiratory failure with high O2) - use Venturi mask
  • In all other emergencies: target SpO2 94-98%
  • In CO poisoning, anaphylaxis, cardiac arrest: always use 100% O2 / NRM first

DAY 3 - CARDIAC EMERGENCIES & ECG (EXTENDED)


Q7. How do you read a 12-lead ECG systematically?

Systematic ECG reading (use this every time - RSVP):

Step 1 - Rate

  • Count large squares between two R waves: divide into 300
    • 1 box = 300, 2 boxes = 150, 3 boxes = 100, 4 boxes = 75, 5 boxes = 60
  • Normal: 60-100 bpm

Step 2 - Rhythm

  • Regular or irregular?
  • P before every QRS? QRS after every P?
  • Regular = sinus rhythm
  • Irregularly irregular (no pattern) = Atrial Fibrillation
  • Regular irregular (pattern to it) = 2nd degree AV block

Step 3 - Axis

  • Normal axis: leads I and aVF both positive (upright QRS)
  • Left axis deviation: lead I positive, aVF negative (LAD)
  • Right axis deviation: lead I negative, aVF positive (RAD)

Step 4 - P wave

  • Present? Upright in II? PR interval 0.12-0.20 sec (3-5 small boxes)
  • Prolonged PR = 1st degree AV block
  • Absent P waves = AF or junctional rhythm

Step 5 - QRS complex

  • Duration: <0.12 sec (3 small boxes) = normal
  • Wide QRS (>0.12) = LBBB, RBBB, hyperkalemia, ventricular rhythm
  • Pathological Q wave: >0.04 sec wide and >25% of R wave height = old MI

Step 6 - ST segment

  • ST elevation (STEMI or pericarditis)
  • ST depression (ischemia, NSTEMI, digoxin)
  • Measure J-point (where S wave meets ST segment)

Step 7 - T wave

  • Normal: upright in I, II, V3-V6; inverted in aVR
  • Tall peaked T waves = hyperkalemia (first ECG sign)
  • Inverted T waves = ischemia, PE, RBBB
  • Flat/biphasic T waves = hypokalemia

Step 8 - QTc interval

  • Normal: <440ms (men), <460ms (women)
  • Prolonged QTc = risk of Torsades de Pointes
  • Causes: medications (amiodarone, haloperidol), hypokalemia, hypomagnesemia

Q8. Explain common arrhythmias with their ECG features and management.

1. Sinus Tachycardia

  • ECG: Normal P-QRS-T; rate >100 bpm
  • Cause: Pain, fever, anxiety, anemia, PE, hypovolemia
  • Treatment: Treat the underlying cause (NOT the rhythm itself)

2. Atrial Fibrillation (AF)

  • ECG: No P waves; irregularly irregular QRS; fibrillatory baseline
  • Symptoms: Palpitations, breathlessness, dizziness, stroke risk
  • Treatment:
    • Rate control: Metoprolol or Diltiazem IV
    • Rhythm control (if <48 hrs onset): Electrical cardioversion (synchronized) or Amiodarone
    • Anticoagulation: Warfarin/NOACs to prevent stroke (CHA2DS2-VASc score)
    • Unstable AF (BP <90, altered consciousness): immediate synchronized cardioversion

3. SVT - Supraventricular Tachycardia

  • ECG: Narrow QRS; rate 150-250; P waves may be buried in QRS
  • Treatment (stable):
    • Step 1: Vagal maneuvers (Valsalva, carotid massage)
    • Step 2: Adenosine 6 mg rapid IV push (flush immediately with 20 mL NS)
    • If no response after 1-2 min: Adenosine 12 mg IV (can repeat once)
    • Step 3: Verapamil or Diltiazem IV
  • Treatment (unstable): Synchronized cardioversion 50-100J

4. Ventricular Tachycardia (VT) with pulse

  • ECG: Wide QRS (>0.12 sec); rate >100; regular; AV dissociation
  • Treatment (stable):
    • Amiodarone 150 mg IV over 10 minutes, then 1 mg/min infusion
    • OR Lidocaine 1-1.5 mg/kg IV
  • Treatment (unstable): Synchronized cardioversion 100J (biphasic)
  • Pulseless VT: = cardiac arrest - immediate defibrillation

5. Complete Heart Block (3rd Degree AV Block)

  • ECG: P waves and QRS completely dissociated (no relationship); both regular but independent
  • Symptoms: Severe bradycardia, syncope (Stokes-Adams attacks), hypotension
  • Treatment: Atropine; Transcutaneous pacing immediately; definitive = permanent pacemaker

6. 1st Degree AV Block

  • ECG: PR interval prolonged (>0.20 sec); every P followed by QRS
  • Usually benign - no treatment needed; monitor

7. 2nd Degree AV Block - Mobitz Type I (Wenckebach)

  • ECG: Progressively lengthening PR interval until a P wave is NOT followed by QRS; then cycle repeats
  • Usually benign; may need pacing if symptomatic

8. 2nd Degree AV Block - Mobitz Type II

  • ECG: PR interval constant; some P waves suddenly not followed by QRS (2:1, 3:1 ratio)
  • Dangerous - can progress to complete heart block
  • Treatment: Pacemaker

Q9. What is the full STEMI management protocol?

Immediate Assessment (within 10 minutes of arrival):

  1. 12-lead ECG (door-to-ECG within 10 minutes)
  2. IV access x2; bloods: Troponin, CK-MB, FBC, U&E, coagulation
  3. O2 if SpO2 <94%
  4. Continuous monitoring (BP, ECG, SpO2)

Immediate Drugs (MONA + P2Y12):

  • Aspirin 300 mg chewable (unless contraindicated)
  • P2Y12 inhibitor: Ticagrelor 180 mg OR Clopidogrel 300-600 mg
  • Heparin (LMWH or UFH)
  • Nitrates (GTN) if BP >90 systolic (NOT in right ventricular MI - causes severe hypotension)
  • Morphine 2-4 mg IV for pain (use cautiously)

Reperfusion Decision:

  • Primary PCI (angioplasty) - if cathlab available within 90 minutes of first medical contact - GOLD STANDARD
  • Thrombolysis - if PCI not available within 120 minutes from diagnosis:
    • Streptokinase 1.5 million units IV over 60 min, OR
    • Alteplase (tPA) 15 mg bolus + 0.75 mg/kg over 30 min + 0.5 mg/kg over 60 min

Contraindications to Thrombolysis:

  • Absolute: Prior intracranial hemorrhage, current stroke, aortic dissection, active bleeding, recent head/facial trauma
  • Relative: Severe uncontrolled hypertension (>180/110), recent major surgery (<3 weeks), pregnancy, oral anticoagulants

DAY 4 - TRAUMA MANAGEMENT (EXTENDED)


Q10. What is the PHTLS (Pre-Hospital Trauma Life Support) approach?

PHTLS is designed specifically for pre-hospital emergency care. It teaches the same CABCDE framework but focuses on:
  1. Scene safety and mechanism of injury (MOI)
    • What happened? (MVC, fall height, penetrating vs blunt)
    • High energy = high index of suspicion for serious injury
    • Consider spinal injury if: fall >3x patient height, high-speed MVC, diving accident, axial loading
  2. Primary survey with simultaneous treatment (not sequential)
    • In the field: C-A-B-C-D-E performed rapidly (2-3 min goal)
  3. Scoop and run vs stay and play:
    • Critical trauma patient: LOAD AND GO - stabilize basics only; get to hospital fast (goal <10 min on scene for penetrating trauma)
    • Only minor injuries: may take time on scene to fully treat
  4. Spinal Motion Restriction (SMR):
    • Full SMR: C-collar + long spine board/vacuum mattress
    • Indications: Altered mental status + trauma, spine pain/tenderness, neurological deficits, high-energy mechanism
    • In conscious, alert, sober patients with no spine pain and normal motor/sensory = can clear clinically (NEXUS criteria)

Q11. What are the NEXUS criteria for clearing cervical spine without X-ray?

A patient can have cervical spine injury excluded clinically (no X-ray needed) if ALL 5 criteria are met:
  1. No midline cervical tenderness (press along posterior spinous processes - no pain)
  2. No focal neurological deficit
  3. Normal alertness (GCS 15, no drugs/alcohol)
  4. No intoxication
  5. No painful distracting injury (e.g., no femur fracture causing distraction)
If ANY criterion fails: C-collar on; CT cervical spine required.

Q12. What are the types of head injuries an EMT must know?

1. Concussion (Mild TBI - GCS 13-15):

  • Temporary loss of consciousness or confusion after head injury
  • Headache, nausea, amnesia
  • No structural damage on CT
  • Rest and observation

2. Epidural Hematoma:

  • Lucid interval followed by rapid deterioration = CLASSIC presentation
  • Cause: Temporal bone fracture + middle meningeal artery rupture
  • CT: Biconvex (lens-shaped) hyperdense lesion
  • Crosses midline: NO | Crosses suture lines: NO
  • Treatment: Emergency craniotomy

3. Subdural Hematoma:

  • Acute: Bridging vein rupture; rapid deterioration; crescent-shaped bleed on CT
  • Chronic: Elderly patients on anticoagulants; weeks after minor fall; headache, confusion
  • CT: Crescent-shaped (concave) lesion
  • Crosses suture lines: YES
  • Treatment: Craniotomy or burr holes

4. Subarachnoid Hemorrhage (SAH):

  • "Worst headache of my life" - sudden onset thunderclap headache
  • Cause: Ruptured cerebral aneurysm
  • CT: Star-shaped blood in subarachnoid space
  • Treatment: Neurosurgery; nimodipine (prevents vasospasm)

5. Intracerebral Hemorrhage:

  • Bleeding within brain tissue; hypertension most common cause
  • Altered consciousness, focal deficits
  • CT: Hyperdense lesion within brain parenchyma
EMT priorities in ALL head injuries:
  • Protect airway (intubate if GCS ≤8)
  • Maintain SpO2 >94% and ETCO2 35-40 mmHg (avoid hypoxia AND hypocapnia)
  • Maintain MAP ≥80 mmHg (cerebral perfusion pressure)
  • Do NOT give excessive fluids
  • Head of bed 30 degrees
  • Urgent CT head

Q13. What is the management of burns?

Classification:

DepthOld nameAppearancePainTreatment
Superficial1st degreeRed, dry, no blistersVery painfulCool water, analgesia
Superficial partial thickness2nd degree superficialRed, wet, blistersVery painfulDressing, may need skin graft
Deep partial thickness2nd degree deepPale, less wetLess painful (nerve damage)Skin graft
Full thickness3rd degreeLeathery, white/brown/blackPainless (nerves destroyed)Skin graft
Sub-dermal4th degreeCharred, involves bonePainlessAmputation, complex reconstruction

Rule of Nines (adult BSA estimation):

  • Head and neck: 9%
  • Each arm: 9% (total 18%)
  • Chest: 9% | Abdomen: 9% (Anterior trunk = 18%)
  • Upper back: 9% | Lower back: 9% (Posterior trunk = 18%)
  • Each thigh: 9% | Each lower leg: 9% (each leg = 18%; total = 36%)
  • Genitalia: 1%
  • Lund-Browder chart is more accurate for children (head larger)

Parkland Formula (fluid resuscitation for burns >20% BSA):

4 mL x Weight (kg) x %BSA burned = total IV fluid (Lactated Ringer's) in first 24 hours
  • Give half in first 8 hours from time of burn (not from hospital arrival)
  • Give remaining half over next 16 hours

Initial EMT management:

  1. Stop burning (remove clothing, cool with room temperature water 10-20 min - NOT ice)
  2. Airway priority: singed eyebrows/nasal hair, hoarseness, carbonaceous sputum = airway burn = intubate EARLY
  3. IV access x2; fluid resuscitation (Parkland formula)
  4. Pain management (IV morphine/ketamine)
  5. Cover with clean dry dressing; keep warm
  6. Catheter (urine output target: 0.5-1 mL/kg/hr adults; 1 mL/kg/hr children)

DAY 5 - SHOCK MANAGEMENT (EXTENDED)


Q14. What is the Surviving Sepsis Campaign bundle for septic shock?

Definition of Septic Shock (Sepsis-3):
  • Life-threatening organ dysfunction due to dysregulated host response to infection
  • Septic shock = sepsis + vasopressor needed to maintain MAP ≥65 mmHg + serum lactate >2 mmol/L despite adequate fluid resuscitation
1-Hour Bundle (all within 1 hour of diagnosis):
  1. Measure lactate (repeat if >2 mmol/L)
  2. Blood cultures x2 (before antibiotics - peripheral + central line)
  3. Broad-spectrum antibiotics IV within 1 hour (do NOT delay for cultures)
  4. IV Crystalloid 30 mL/kg for hypotension or lactate ≥4 mmol/L
  5. Norepinephrine if hypotensive during or after fluid resuscitation
Vasopressors in Septic Shock:
  • 1st line: Norepinephrine (balanced alpha + beta; prevents tachycardia)
  • 2nd line: Vasopressin 0.01-0.03 units/min (to reduce norepinephrine dose)
  • Dobutamine if cardiac dysfunction (low cardiac output component)
  • Goal: MAP ≥65 mmHg, urine output ≥0.5 mL/kg/hr, normalizing lactate
(Source: Miller's Anesthesia - Distributive Shock)

Q15. What is cardiac tamponade and how is it treated?

Pathophysiology:

Fluid (blood, pus, exudate) accumulates in pericardial sac - normally contains only 15-50 mL. As volume increases, pericardial pressure rises, compressing the heart, reducing diastolic filling, and decreasing cardiac output.

Signs - Beck's Triad:

  1. Hypotension (low BP)
  2. Raised JVP (distended neck veins - elevated CVP)
  3. Muffled heart sounds (fluid dampens sounds)
Additional signs:
  • Pulsus paradoxus: BP drops >10 mmHg during inspiration (classic for tamponade)
  • Tachycardia
  • Electrical alternans on ECG (alternating QRS height)

Causes:

  • Penetrating chest trauma (stab wound) - most common in young trauma patients
  • Post-cardiac surgery
  • Malignancy (slow-filling)
  • Pericarditis, TB, uraemia

Treatment:

  • Pericardiocentesis - needle aspiration
    • Patient sitting up at 45 degrees
    • Insert needle at subxiphoid angle, aim toward left shoulder at 45 degrees
    • Even 10-15 mL removal dramatically improves cardiac output
    • Ideally ultrasound-guided
  • Definitive: Surgical pericardial window or pericardiotomy in theatre

Q16. What is massive transfusion protocol (MTP)?

When activated: Blood product requirement >10 units pRBCs in 24 hrs, or ongoing hemorrhage with hemodynamic instability.
Damage Control Resuscitation (DCR) principles:
  1. Permissive hypotension: Target systolic BP 80-90 mmHg (NOT 120) in penetrating trauma until surgical hemorrhage control - prevents "popping the clot"
  2. Balanced resuscitation: Ratio of pRBC : FFP : Platelets = 1:1:1
  3. Avoid crystalloid - dilutes clotting factors and worsens coagulopathy
  4. Tranexamic acid (TXA): Give within 3 hours of injury - 1g IV over 10 min + 1g over 8 hours
  5. Correct the "lethal triad": Hypothermia + Acidosis + Coagulopathy
(Source: Sabiston Textbook of Surgery; Rosen's Emergency Medicine)

DAY 6 - NEUROLOGICAL EMERGENCIES (EXTENDED)


Q17. What are the types of strokes and how do you differentiate them?

FeatureIschemic Stroke (87%)Hemorrhagic Stroke (13%)
MechanismThrombotic or embolic vessel occlusionVessel rupture - ICH or SAH
OnsetGradual or suddenSudden, often with severe headache
HeadacheMild or absentSEVERE ("thunderclap") in SAH
CT scanNormal initially (first 4-6 hrs); later hypodense areaHyperdense (bright white) blood immediately
VomitingUncommonCommon
TreatmenttPA if eligible; thrombectomyNO tPA; BP control; neurosurgery
Why CT scan BEFORE tPA is mandatory:
  • Hemorrhagic stroke looks IDENTICAL clinically to ischemic stroke
  • tPA in a hemorrhagic stroke = catastrophic - massively worsens the bleed
  • CT scan immediately differentiates: blood appears WHITE on non-contrast CT

Q18. What is increased intracranial pressure (ICP) and how do you manage it?

Normal ICP: 5-15 mmHg Raised ICP: >20 mmHg - brain is being compressed
Cushing's Triad (late, severe sign - impending brain herniation):
  1. Hypertension (rising BP - body trying to perfuse brain)
  2. Bradycardia (reflex)
  3. Irregular respirations (Cheyne-Stokes)
Treatment of raised ICP:
  1. Head of bed 30-45 degrees
  2. Avoid hyponatremia - may use hypertonic saline
  3. Mannitol 0.25-1 g/kg IV (osmotic diuretic - draws water out of brain)
  4. Controlled hyperventilation (ETCO2 30-35 mmHg) - temporary bridge only (causes cerebral vasoconstriction)
  5. Avoid hypotension (maintain MAP ≥80 mmHg for cerebral perfusion)
  6. Surgical decompression (decompressive craniectomy) for refractory cases

Q19. What is spinal cord injury and what is neurogenic shock?

Spinal cord injury levels and function:
  • C3-C5: Diaphragm (C3,4,5 keeps the diaphragm alive) - above this level = cannot breathe
  • C5-C6: Biceps, wrist extension
  • C7: Triceps, wrist flexion
  • T1-T12: Intercostals, abdominal muscles
  • L1-L2: Hip flexors
  • L3-L4: Quadriceps, knee extension
  • L4-L5: Ankle dorsiflexion (foot drop if injured)
  • S2-S4: Bladder, bowel, erectile function
Neurogenic Shock (from cervical or high thoracic cord injury):
  • Loss of sympathetic tone below lesion
  • Result: Vasodilation + bradycardia
  • UNIQUE FEATURE: Bradycardia with hypotension (all other shocks have tachycardia)
  • Warm, dry, flushed skin (vasodilated)
  • Treatment: Atropine for bradycardia; Vasopressors (norepinephrine/phenylephrine) for hypotension; careful fluids (risk of pulmonary edema)
  • Maintain spinal immobilization

Q20. What is meningitis and how do you recognise it?

Definition: Inflammation of meninges (lining of brain and spinal cord) - bacterial meningitis is a life-threatening emergency.
Classic triad:
  1. Fever
  2. Neck stiffness (nuchal rigidity)
  3. Photophobia (sensitivity to light)
Additional signs:
  • Kernig's sign: Cannot extend knee when hip flexed at 90 degrees (pain)
  • Brudzinski's sign: Passive neck flexion causes involuntary hip and knee flexion
  • Purpuric/petechial rash (non-blanching) = meningococcal disease - EMERGENCY
  • Altered consciousness, seizures
EMT action:
  1. Immediate assessment and IV access
  2. Do NOT delay antibiotics for CT scan or LP if patient deteriorating
  3. IV Benzylpenicillin (if pre-hospital, in UK: 1.2g for adults before hospital transfer)
  4. In hospital: Ceftriaxone 2g IV + Dexamethasone 0.15 mg/kg IV
  5. Isolation precautions (droplet)

DAY 7 - TOXICOLOGY (EXTENDED)


Q21. What are the major toxidromes (poisoning syndromes)?

A toxidrome is a group of symptoms that together point to a specific class of poison:

1. Cholinergic Toxidrome (too much acetylcholine)

  • Causes: Organophosphates, carbamates, nerve agents, pilocarpine
  • DUMBBELS: Diarrhea, Urination, Miosis, Bradycardia, Bronchospasm/Bronchorrhea, Emesis, Lacrimation, Salivation
  • Nicotinic effects: Muscle fasciculations, weakness, paralysis (can't breathe)
  • Treatment: Atropine (large doses) + Pralidoxime

2. Anticholinergic Toxidrome (blocked acetylcholine)

  • Causes: Atropine, antihistamines, TCA antidepressants, jimsonweed
  • Mnemonic: "Hot as a hare, Blind as a bat, Dry as a bone, Red as a beet, Mad as a hatter"
    • Hyperthermia, Mydriasis (dilated pupils), Dry skin/mouth, Flushing, Confusion/hallucinations
    • Tachycardia, urinary retention, decreased bowel sounds
  • Treatment: Physostigmine (specific antidote); supportive care; benzodiazepines for agitation

3. Opioid Toxidrome (too much opioid)

  • Causes: Morphine, heroin, codeine, fentanyl, tramadol
  • Classic triad: Miosis (pinpoint pupils) + Respiratory depression + Decreased consciousness
  • Treatment: Naloxone 0.4-2 mg IV/IM/IN; repeat every 2-3 min

4. Sympathomimetic Toxidrome (too much adrenaline)

  • Causes: Cocaine, amphetamines, MDMA (ecstasy), caffeine overdose
  • Signs: Mydriasis (dilated pupils), tachycardia, hypertension, hyperthermia, diaphoresis, agitation
  • Treatment: Benzodiazepines (calm hyperadrenergic state); cooling; avoid beta-blockers (causes unopposed alpha = worse hypertension)

5. Sedative-Hypnotic Toxidrome

  • Causes: Benzodiazepines, barbiturates, alcohol
  • Signs: CNS depression, respiratory depression, slurred speech, ataxia; NORMAL pupils
  • Treatment: Airway support; flumazenil for benzodiazepines (use with caution)

Q22. What is the management of paracetamol (acetaminophen) overdose?

Mechanism of toxicity:
  • Normal dose: paracetamol conjugated safely in liver
  • Overdose: NAPQI (toxic metabolite) accumulates, depletes glutathione, causes liver necrosis
  • Critical period: 72-96 hours after ingestion = maximum liver damage
Stages:
  • 0-24 hr: Nausea, vomiting, malaise (may appear well)
  • 24-72 hr: Right upper quadrant pain, rising LFTs
  • 72-96 hr: Liver failure, jaundice, coagulopathy, encephalopathy
  • 96 hr: Recovery OR death from liver failure
Rumack-Matthew nomogram: Plot paracetamol level on graph at known time of ingestion to determine treatment threshold
Treatment:
  1. If <1-2 hours: Activated charcoal 50g orally (absorbs paracetamol in gut)
  2. N-Acetylcysteine (NAC) = definitive antidote:
    • Replenishes glutathione stores
    • IV regime: 150 mg/kg in 200 mL 5% Dextrose over 60 min → 50 mg/kg over 4 hours → 100 mg/kg over 16 hours
    • Start within 8 hours for maximum benefit (still give up to 24 hours)
  3. Monitor LFTs, INR, creatinine, blood glucose
  4. Liver transplant assessment if fulminant liver failure develops

Q23. What is carbon monoxide (CO) poisoning?

Mechanism: CO has 240x higher affinity for hemoglobin than oxygen → forms carboxyhemoglobin (COHb) → oxygen cannot be carried → tissue hypoxia despite normal PaO2
Important: Pulse oximeter reads NORMAL SpO2 in CO poisoning (it cannot distinguish COHb from OxyHb) - always suspect in enclosed space fire/smoke inhalation
Signs (COHb levels):
COHb LevelSymptoms
10-20%Headache, nausea
20-40%Severe headache, confusion, syncope
40-60%Seizures, coma, cardiac arrhythmias
>60%Death
Classic "cherry red skin"Unreliable; usually seen only at post-mortem
Treatment:
  1. Remove from exposure; scene safety
  2. 100% O2 via non-rebreather mask - reduces COHb half-life from 5 hours to 90 minutes
  3. Hyperbaric oxygen (HBO) if: COHb >25%, unconscious, cardiac arrhythmias, neurological signs, pregnancy - reduces half-life to 20-30 min
  4. Supportive care; ECG monitoring (CO causes arrhythmias)

DAY 8 - PAEDIATRIC & OBSTETRIC EMERGENCIES (EXTENDED)


Q24. What are the key differences in paediatric emergency assessment?

Paediatric Assessment Triangle (PAT) - rapid 30-second visual assessment:
  1. Appearance (TICLS):
    • Tone: Is child active, limp, or floppy?
    • Interactiveness: Engaged, curious, or unresponsive?
    • Consolability: Can parent comfort them?
    • Look/Gaze: Direct eye contact or glazed?
    • Speech/Cry: Strong cry or weak/absent?
  2. Work of Breathing:
    • Nasal flaring, grunting, retractions (subcostal, intercostal, sternal)
    • Head bobbing (severe respiratory distress in infants)
    • Audible sounds: stridor, wheeze, grunting
  3. Circulation (skin color):
    • Pallor (anemia, shock), cyanosis (hypoxia), mottling (impaired perfusion), flushing
Abnormal PAT findings = sick child - act immediately

Q25. How do you manage croup vs epiglottitis?

FeatureCroup (Laryngotracheobronchitis)Epiglottitis
Age6 months - 3 yearsAny (classically 2-5 years, now adults)
CauseParainfluenza virusHaemophilus influenzae type B (now rare due to Hib vaccine)
OnsetGradual over daysRapid (hours)
SoundBarking/seal-like coughMuffled voice, no cough
DroolingNoYES (cannot swallow - painful)
PositionAnyTripod position (leaning forward)
FeverLow gradeHigh fever
X-raySteeple sign (subglottic narrowing on AP)Thumbprint sign (swollen epiglottis on lateral)
TreatmentDexamethasone + nebulized adrenaline (epinephrine)Do NOT examine throat; immediate intubation in theatre by ENT + anaesthetist + surgeon present
NEVER use tongue depressor to examine throat in suspected epiglottitis - can cause complete obstruction

Q26. What is the Paediatric Early Warning Score (PEWS)?

PEWS triggers earlier escalation in deteriorating children based on:
  • Behaviour (normal/sleeping/irritable/lethargic/confused)
  • Cardiovascular (colour/capillary refill/HR)
  • Respiratory (RR/work of breathing/SpO2)
Each parameter scored 0-3. Total >3 = escalate immediately.

Q27. What are the neonatal emergencies an EMT must recognise?

Neonatal Resuscitation:

  • At birth: Dry, stimulate, assess tone, breathing, HR
  • HR <100 + not breathing adequately → BVM ventilation with air (21% O2) at 40-60 breaths/min
  • HR <60 despite 30 sec effective ventilation → start CPR: 3:1 ratio (3 compressions : 1 breath), rate 120 events/min
  • Vascular access: umbilical vein catheter

Hypoglycaemia in neonate:

  • Blood glucose <2.6 mmol/L in neonate = emergency
  • Treatment: 2 mL/kg 10% Dextrose IV

Respiratory Distress Syndrome (RDS):

  • Premature baby (lungs not mature, lack surfactant)
  • Signs: grunting, nasal flaring, subcostal retractions, cyanosis
  • Treatment: surfactant replacement therapy, CPAP

Q28. Obstetric emergencies - full details

Pre-eclampsia vs Eclampsia:

FeaturePre-eclampsiaEclampsia
BPHypertension (>140/90)Severe hypertension
ProteinuriaYesYes
SeizuresNoYES
Timing>20 weeks gestation>20 weeks (can be postnatal)
TreatmentAntihypertensives; monitorMgSO4 + antihypertensives + delivery
MgSO4 protocol:
  • Loading dose: 4g IV in 100 mL NS over 10-15 min
  • Maintenance: 1g/hr IV infusion
  • Toxicity signs (in order): Loss of DTRs → Respiratory depression → Cardiac arrest
  • Antidote for MgSO4 toxicity: Calcium gluconate 10 mL of 10% IV
  • Therapeutic level: 2-3.5 mmol/L
  • Check: patellar reflexes, urine output, respiratory rate before each dose

HELLP Syndrome (severe pre-eclampsia variant):

  • Hemolysis + Elevated Liver enzymes + Low Platelets
  • Treatment: Urgent delivery; transfuse if platelets <20,000

Ectopic Pregnancy:

  • Fertilised egg implants outside uterus (usually fallopian tube)
  • Risk factors: PID, previous ectopic, IUD
  • Signs: Amenorrhoea + lower abdominal pain + vaginal bleeding
  • Can rupture → massive intraperitoneal hemorrhage → shock
  • Positive pregnancy test + hemodynamic instability = ruptured ectopic until proven otherwise
  • Treatment: Emergency surgery (salpingectomy)

Placenta Praevia vs Placental Abruption:

FeaturePlacenta PraeviaPlacental Abruption
BleedingPainless, bright red, PVPainful, dark blood, tender uterus
UterusSoftRigid/board-like
CausePlacenta covers cervixPremature separation of placenta
Fetal distressVariableCommon (fetus deprived)
ManagementDo NOT do vaginal exam; C-sectionImmediate delivery; fluid resuscitation

DAY 9 - MEDICAL EMERGENCIES (EXTENDED)


Q29. What is acute pulmonary oedema and how do you manage it?

Definition: Fluid accumulation in lung alveoli and interstitium, causing severe dyspnoea.
Most common cause: Left ventricular failure (LVF) - backed up pressure from failing LV pushes fluid into lungs
Presentation:
  • Severe breathlessness (orthopnoea - cannot lie flat)
  • Pink frothy sputum
  • Bilateral crackles (basal, moving upward as severity worsens)
  • SpO2 dropping despite O2
  • Tachycardia; raised JVP; gallop rhythm (S3)
CXR findings (ABCDE):
  • Alveolar oedema (bat wing opacification)
  • B-lines / Kerley B lines (interstitial oedema)
  • Cardiomegaly
  • Diversion (upper lobe blood diversion)
  • Effusions (pleural)
Management:
  1. Sit patient upright
  2. High-flow O2 (target SpO2 94-98%)
  3. CPAP (Continuous Positive Airway Pressure) - if available; improves gas exchange significantly
  4. IV Furosemide (Frusemide) 40-80 mg IV (diuresis - removes fluid)
  5. GTN (Glyceryl Trinitrate) sublingual/infusion (vasodilation - reduces preload/afterload; only if BP >90)
  6. Morphine 2.5-5 mg IV (reduces anxiety and venodilation - use cautiously)
  7. Treat underlying cause: AF (rate control), MI (reperfusion), hypertensive crisis (antihypertensives)
  8. Intubation if respiratory failure despite CPAP

Q30. What is COPD exacerbation and how do you manage it?

COPD exacerbation: Acute worsening of chronic breathlessness, cough, sputum beyond normal day-to-day variation
Triggers: Respiratory infection (viral/bacterial), air pollution, medication non-compliance
Signs:
  • Barrel chest, pursed lip breathing, use of accessory muscles
  • Prolonged expiratory phase, wheeze
  • Cyanosis, confusion (hypercapnia)
  • SpO2 low but may be chronically low
Management:
  1. Controlled O2: target SpO2 88-92% (NOT 100% - hypercapnic drive)
    • Use Venturi mask 24-28% first; titrate up slowly
  2. Nebulized Salbutamol 2.5-5 mg + Ipratropium 0.5 mg (bronchodilators)
  3. Oral Prednisolone 30-40 mg (or hydrocortisone 200 mg IV if cannot swallow)
  4. Antibiotics if purulent sputum/signs of infection (amoxicillin or doxycycline)
  5. NIV (BiPAP) for hypercapnic respiratory failure (pH <7.35 + PaCO2 >6 kPa)
  6. Intubation only if NIV fails (high mortality in COPD)

Q31. What is acute kidney injury (AKI) and what are the causes?

Definition: Sudden decrease in kidney function over hours to days, causing build-up of waste products (creatinine, urea).
RIFLE/KDIGO criteria: Rising creatinine >1.5x baseline or decreased urine output <0.5 mL/kg/hr for >6 hours
Causes (Pre-renal, Renal, Post-renal):
CategoryCausesKey feature
Pre-renal (most common)Hypovolemia, sepsis, cardiac failure, NSAIDsBUN:Cr ratio >20; responds to fluids
Intrinsic RenalATN (ischemia/nephrotoxins), glomerulonephritis, contrast nephropathyBUN:Cr ratio <20; does NOT respond to fluids alone
Post-renal (obstructive)BPH, kidney stones, pelvic tumourOliguria or anuria; ultrasound shows hydronephrosis
Treatment:
  1. Treat underlying cause
  2. Stop nephrotoxins (NSAIDs, aminoglycosides, contrast)
  3. Fluid challenge for pre-renal AKI (500 mL crystalloid bolus)
  4. Monitor electrolytes - especially hyperkalemia (cardiac arrhythmias)
  5. Strict fluid balance and urine output measurement
  6. Dialysis if: severe hyperkalemia, metabolic acidosis, pulmonary edema, uremia

Q32. How do you manage hyperkalemia?

Dangerous potassium levels: K+ >6.0 mmol/L = life-threatening cardiac arrhythmias
ECG changes (in order of worsening):
  1. Peaked (tall, tented) T waves - FIRST sign
  2. Prolonged PR interval
  3. Widening QRS
  4. Sine wave pattern
  5. VF/Asystole
Emergency treatment:
  1. Calcium gluconate 10 mL 10% IV over 2-5 min (stabilizes cardiac membrane - FIRST LINE; works in 1-3 min; does NOT reduce K+)
  2. Insulin 10 units + 50 mL 50% Dextrose IV (shifts K+ into cells; works in 15-30 min)
  3. Salbutamol 10-20 mg nebulized (shifts K+ into cells; adjunct)
  4. Sodium bicarbonate (if metabolic acidosis)
  5. Calcium resonium (oral/PR) or Patiromer (binds K+ in gut - slow)
  6. Dialysis for severe/refractory hyperkalemia

DAY 10 - HOSPITAL PROTOCOLS, COMMUNICATION & FINAL EXAM PREP


Q33. What is the hospital emergency response for Code Blue?

Code Blue = Adult cardiac/respiratory arrest in hospital
Response Protocol:
  1. Person who finds patient: Calls "Code Blue" to switchboard (or presses emergency button), starts CPR
  2. Code Blue team responds within 3 minutes (typically: senior doctor, anaesthetist, nurse, runner)
  3. Role allocation on arrival:
    • Team leader: Most senior clinician; directs team; rhythm analysis decisions
    • Compressor: CPR (rotated every 2 min to prevent fatigue)
    • Airway person: BVM → intubation
    • IV/IO access + drug administration
    • Recorder: Documents time of events, drugs, rhythm changes
    • Runner: Gets drugs, equipment
  4. DNAR (Do Not Attempt Resuscitation): Always check before starting resuscitation; valid DNAR order overrides team response
  5. Post-resuscitation care (ROSC):
    • Target SpO2 94-98%; ETCO2 35-40 mmHg
    • Target MAP ≥65 mmHg; avoid hypotension
    • 12-lead ECG (check for STEMI → PCI)
    • Targeted Temperature Management (TTM): 32-36°C for 24 hours if still unconscious
    • Urgent CT brain if cause unclear

Q34. What are medication safety practices in emergency settings?

"5 Rights" of drug administration:
  1. Right Patient (check ID band + ask name + DOB)
  2. Right Drug (read label twice)
  3. Right Dose (calculate correctly; double-check with colleague for high-risk drugs)
  4. Right Route (IV, IM, oral, nebulized)
  5. Right Time (give at correct interval)
High-alert medications in emergency (double-check ALWAYS):
  • Insulin (type + dose)
  • Concentrated electrolytes (KCl, NaCl 3%, MgSO4)
  • Opioids
  • Anticoagulants (heparin, warfarin)
  • Neuromuscular blockers (succinylcholine, rocuronium)
  • Concentrated adrenaline (1:1000 vs 1:10,000)
Never do:
  • Give a verbal order without read-back confirmation
  • Pre-draw and label multiple syringes without immediately using them
  • Give any drug without checking allergy status first

Q35. What are infection prevention and control (IPC) fundamentals?

Standard Precautions (apply to ALL patients):

  • Hand hygiene (5 moments)
  • PPE: Gloves, apron, mask, eye protection (based on risk)
  • Safe sharps disposal
  • Safe handling of body fluids
  • Environmental cleaning

Transmission-Based Precautions:

TypeRouteConditionsPPE
ContactDirect/indirect contactMRSA, VRE, Norovirus, C. diffGloves + apron; single room
DropletLarge droplets (>5 microns)Meningitis, influenza, mumpsSurgical mask within 1 meter
AirborneSmall particles (<5 microns)TB, measles, chickenpoxN95/FFP2 mask; negative pressure room

N95 vs surgical mask:

  • Surgical mask: Protects OTHERS from the wearer (large droplets only)
  • N95/FFP2/FFP3: Protects the WEARER from airborne particles (TB, aerosol-generating procedures)

Q36. What are the key documentation principles in emergency care?

MIST Handover (used for trauma/emergency handover):

  • M - Mechanism of injury
  • I - Injuries identified (and suspected)
  • S - Signs and vital signs (initial and current)
  • T - Treatment given (drugs, fluids, interventions) and time given

Legal documentation rules:

  • Write legibly in BLACK ink
  • Date, time, sign every entry
  • Never use correction fluid/Tipp-Ex - strike through with single line and initial
  • Record: Time of events, vital signs, assessments, interventions, responses, discussions with relatives
  • Document any refusal of treatment (patient must sign)
  • Document DNAR discussions

Electronic records:

  • Every login is auditable - never use another person's login
  • Document immediately or within the same shift

Q37. What are common interview MCQ scenario questions with answers?

Scenario 1:

A 60-year-old male collapses in the hospital corridor. He is unresponsive and not breathing. An ECG monitor shows VF. What is your IMMEDIATE next action?
Answer: Immediate defibrillation (do not start CPR first if a defibrillator is immediately available and VF is confirmed on monitor).
  • Call for help
  • Deliver shock: 200J biphasic (or 360J monophasic)
  • Immediately resume CPR for 2 min post-shock
  • Continue ACLS algorithm

Scenario 2:

A 25-year-old male is brought in by his friend after being found unconscious at a party. RR 6/min, pinpoint pupils, SpO2 78%.
Answer: Opioid overdose.
  • Airway first: BVM ventilation with 100% O2
  • IV/IM Naloxone 0.4-2 mg immediately
  • Repeat every 2-3 minutes if no response (up to 10 mg total)
  • Watch for re-sedation - observe for minimum 4 hours after last naloxone dose

Scenario 3:

A 30-year-old female, 32 weeks pregnant, has a tonic-clonic seizure in the antenatal ward. BP 170/110. No history of epilepsy.
Answer: Eclampsia.
  • Airway, left lateral tilt, O2
  • Diazepam 10 mg IV if actively seizing
  • MgSO4 4g IV over 15 min (loading dose) + 1g/hr infusion
  • Labetalol 20 mg IV or Nifedipine orally for BP
  • Urgent obstetric review for delivery

Scenario 4:

A patient comes in with severe central chest pain radiating to back, BP right arm 180/100, left arm 140/80. What do you suspect?
Answer: Aortic dissection (BP difference >20 mmHg between arms is a key sign).
  • Do NOT give thrombolysis (catastrophic)
  • Urgent CT aortogram
  • Urgent cardiothoracic surgery review
  • Control BP: IV Labetalol or Esmolol (target systolic 100-120 mmHg)

Scenario 5:

A 70-year-old male with known COPD is brought in confused, RR 28, SpO2 82% on air. A junior nurse gives him 15 L O2 via NRM. What should you do?
Answer: Change to Venturi mask 24-28%, target SpO2 88-92%.
  • In COPD: chronically high CO2; respiratory drive is hypoxic (not hypercapnic)
  • High-flow O2 suppresses this drive → respiratory arrest
  • Titrate O2 slowly; prepare for NIV (BiPAP) if hypercapnic

Q38. What are the most likely written exam MCQ topics for Apollo/CMC/Kavery?

Guaranteed Topics (appear in almost every hospital exam):

  1. CPR ratios and compression depths
  2. Defibrillation energy settings and shockable vs non-shockable rhythms
  3. ACLS drugs (epinephrine dose, amiodarone dose)
  4. 4H 4T reversible causes
  5. Anaphylaxis management (epinephrine dose, route, concentration)
  6. GCS scoring and intubation threshold
  7. Oxygen delivery devices and FiO2
  8. Types of shock and differentiating features
  9. Triage (START system - Red/Yellow/Green/Black)
  10. ECG rhythm recognition (AF, VT, VF, SVT, Complete heart block)
  11. STEMI location on ECG (leads)
  12. Stroke FAST assessment and tPA criteria
  13. Organophosphate poisoning signs (DUMBBELS) and antidotes
  14. Burns: Rule of Nines and Parkland formula
  15. Needle decompression site (tension pneumothorax)
  16. WHO 5 moments of hand hygiene
  17. Hospital emergency codes (Code Blue, Red, Pink, etc.)
  18. Normal vital signs by age group
  19. Pediatric CPR differences
  20. MgSO4 for eclampsia - dose and toxicity signs

COMPLETE RAPID REVISION CARD

Cut this out and read every morning:

TopicKey Number/Fact
Adult CPR compression rate100-120/min
Adult CPR depth5-6 cm
Adult CPR ratio (any number rescuers)30:2
Child/Infant CPR ratio (2 rescuers)15:2
VF/VT defibrillation (biphasic)200 J
VF/VT defibrillation (monophasic)360 J
Epinephrine cardiac arrest dose1 mg IV q3-5 min
Amiodarone VF/VT (1st dose)300 mg IV
Atropine bradycardia0.5 mg IV, max 3 mg
Adenosine SVT6 mg rapid IV
Intubate if GCS≤ 8
Anaphylaxis drug, dose, routeEpinephrine 0.3 mg IM (1:1000)
Needle decompression site2nd ICS, MCL
Stroke tPA window4.5 hours
MgSO4 eclampsia load4 g IV over 15 min
Oxytocin PPH10 IU IM
Normal O2 target (general)SpO2 94-98%
O2 target in COPDSpO2 88-92%
Burns rule of nines (head)9%
Parkland formula4 mL x kg x % BSA
CO poisoning - give100% O2 via NRM
Opioid antidoteNaloxone 0.4-2 mg IV/IM
Organophosphate antidoteAtropine + Pralidoxime
Paracetamol antidoteN-Acetylcysteine (NAC)
Code BlueAdult cardiac arrest
Code PinkPaediatric cardiac arrest
Code RedFire

Sources used: Tintinalli's Emergency Medicine | Rosen's Emergency Medicine | Miller's Anesthesia | Roberts and Hedges' Clinical Procedures in Emergency Medicine | The Washington Manual of Medical Therapeutics | Sabiston Textbook of Surgery | Goldman-Cecil Medicine | Lippincott's Pharmacology | Goodman & Gilman's Pharmacology | AHA 2020 Guidelines

You are now fully prepared for Days 2-10. Study one day per day, speak your answers out loud, and practice scenarios with a colleague. All the best for Apollo, CMC Vellore, Kavery and your multi-speciality hospital interviews!
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