Critical Care Patient Assessment
Diagnosis: Septic Shock Secondary to Severe Community-Acquired Pneumonia
This is a fictional academic case. Adapt the format, medications, and care plan to your institution's policy and your patient's actual findings.
1. Biographic Data
| Item | Details |
|---|
| Patient initials | Mr. R.K. |
| Age | 68 years |
| Sex | Male |
| Marital status | Married |
| Occupation | Retired school teacher |
| Date/time of admission | 13 September 2026, 09:15 AM |
| Unit | Medical Intensive Care Unit |
| Source of history | Wife and previous medical records |
| Reliability of history | Partially reliable because the patient is confused and breathless |
| Code status | Full code |
| Allergies | No known drug allergies |
2. Chief Complaint
“High fever, cough with sputum, shortness of breath, and reduced urine output for 3 days.”
3. History of Present Illness
Mr. R.K. was apparently well until 3 days before admission, when he developed fever with chills, productive cough with yellow-green sputum, generalized weakness, and poor oral intake. His wife reports progressive shortness of breath since the previous night. On the morning of admission, he became drowsy and confused and passed very little urine.
He was brought to the emergency department, where he was found to have:
- Temperature: 39.2°C
- Heart rate: 124 beats/minute
- Respiratory rate: 32 breaths/minute
- Blood pressure: 82/48 mmHg
- Oxygen saturation: 86% on room air
- Altered mental status
- Raised serum lactate: 4.8 mmol/L
He received oxygen, blood cultures, IV antibiotics, and IV crystalloid fluid. Despite initial fluid resuscitation, his mean arterial pressure remained below 65 mmHg and norepinephrine infusion was started. He was admitted to the ICU with a diagnosis of septic shock secondary to severe community-acquired pneumonia.
Septic shock is characterized by sepsis with persistent hypotension requiring vasopressors to maintain adequate perfusion, commonly with elevated lactate despite fluid replacement. The
Surviving Sepsis Campaign guidance recommends early antimicrobials, crystalloid resuscitation, reassessment of fluid responsiveness, and vasopressors when needed.
4. Past Illness History
- Hypertension for 12 years
- Type 2 diabetes mellitus for 8 years
- Chronic obstructive pulmonary disease (COPD) for 5 years
- No previous history of tuberculosis
- No known ischemic heart disease, chronic kidney disease, liver disease, stroke, or malignancy
- One previous hospitalization for COPD exacerbation 2 years ago
- No previous ICU admission
5. Past Medical History
| Condition | Details |
|---|
| Hypertension | Controlled on amlodipine 5 mg orally once daily |
| Type 2 diabetes mellitus | On metformin 500 mg orally twice daily; irregular home glucose monitoring |
| COPD | Uses salbutamol inhaler as needed; former smoker |
| Vaccination history | COVID-19 vaccinated; influenza vaccination not taken in the past year; pneumococcal vaccination status unknown |
6. Present Medical History / Current Problems
- Septic shock secondary to severe community-acquired pneumonia
- Acute hypoxemic respiratory failure
- Acute kidney injury, likely secondary to sepsis and hypotension
- Metabolic lactic acidosis
- Altered sensorium, likely septic encephalopathy
- Hyperglycemia in known type 2 diabetes mellitus
- COPD with risk of bronchospasm and difficulty in weaning from oxygen support
7. Surgical History
- Appendectomy at 25 years of age
- No other surgical procedures
- No history of blood transfusion
8. Family History
- Father died of myocardial infarction at 72 years of age
- Mother had type 2 diabetes mellitus and hypertension
- No family history of tuberculosis, asthma, chronic kidney disease, malignancy, or hereditary disease
9. Personal and Social History
| Item | Details |
|---|
| Diet | Mixed diet |
| Appetite | Reduced for 3 days |
| Sleep | Disturbed due to cough and breathlessness |
| Bowel habits | No bowel movement for 1 day |
| Bladder habits | Markedly reduced urine output since morning |
| Smoking | Former smoker, approximately 35 pack-years; stopped 5 years ago |
| Alcohol | Occasional alcohol intake, stopped 3 years ago |
| Substance use | Denies recreational drug use |
| Functional status before illness | Independent in activities of daily living |
10. Physical Examination
General Examination
| Parameter | Finding |
|---|
| General condition | Acutely ill, toxic-looking, drowsy, tachypneic |
| Level of consciousness | GCS 13/15: E3 V4 M6 |
| Position | Propped up in bed due to dyspnea |
| Body build | Moderately built and nourished |
| Hydration | Dry tongue and dry mucous membranes |
| Pallor | Mild pallor present |
| Icterus | Absent |
| Cyanosis | Mild central cyanosis present initially |
| Clubbing | Absent |
| Lymphadenopathy | Not palpable |
| Pedal edema | Absent |
Vital Signs
| Parameter | Value |
|---|
| Temperature | 39.2°C |
| Pulse | 124/minute, weak, regular |
| Blood pressure | 82/48 mmHg before vasopressor support |
| Mean arterial pressure | Approximately 59 mmHg |
| Respiratory rate | 32/minute |
| SpO₂ | 86% on room air; 94% on 4 L/min oxygen by face mask |
| Pain score | 3/10, pleuritic right-sided chest discomfort |
| Capillary refill time | 4 seconds |
| Urine output | 0.3 mL/kg/hour over previous 6 hours |
Systemic Examination
A. Respiratory System
- Inspection: Tachypnea, use of accessory muscles, reduced movement of right lower chest
- Palpation: Reduced chest expansion in right lower zone
- Percussion: Dull note in right infrascapular and infra-axillary area
- Auscultation: Bronchial breath sounds, coarse crackles, and reduced air entry in right lower lung zone
- Provisional finding: Right lower lobe consolidation, possibly with parapneumonic effusion
B. Cardiovascular System
- Tachycardia present
- Heart sounds S1 and S2 audible
- No murmur
- Peripheral pulses weak
- Extremities cool and mottled
- Delayed capillary refill indicates poor peripheral perfusion
C. Central Nervous System
- Drowsy but arousable
- Disoriented to time and place
- GCS 13/15
- Pupils equal, round, and reactive to light
- No focal neurological deficit
D. Abdomen
- Abdomen soft and non-tender
- Bowel sounds present but sluggish
- No hepatosplenomegaly
- No ascites
E. Renal/Urinary System
- Oliguria present
- Foley catheter inserted for strict urine-output monitoring
- No suprapubic fullness
11. Laboratory Investigations
| Investigation | Result | Interpretation |
|---|
| Hemoglobin | 10.8 g/dL | Mild anemia |
| Total leukocyte count | 21,500/mm³ | Leukocytosis suggestive of infection |
| Neutrophils | 89% | Neutrophilia |
| Platelet count | 118,000/mm³ | Mild thrombocytopenia, monitor for sepsis-associated coagulopathy |
| Serum lactate | 4.8 mmol/L | Tissue hypoperfusion and severe sepsis |
| Repeat lactate after 4 hours | 2.9 mmol/L | Improving, but still elevated |
| Random blood glucose | 286 mg/dL | Stress hyperglycemia/diabetes |
| Urea | 68 mg/dL | Raised |
| Serum creatinine | 2.0 mg/dL | Acute kidney injury; baseline 0.9 mg/dL |
| Sodium | 132 mEq/L | Mild hyponatremia |
| Potassium | 4.9 mEq/L | Upper normal, monitor with AKI |
| Chloride | 100 mEq/L | Normal |
| Serum bicarbonate | 17 mEq/L | Metabolic acidosis |
| ABG | pH 7.30, PaCO₂ 31 mmHg, PaO₂ 62 mmHg, HCO₃ 16 mEq/L | Metabolic acidosis with hypoxemia and respiratory compensation |
| CRP | 218 mg/L | Markedly elevated inflammatory marker |
| Procalcitonin | 8.4 ng/mL | Supports probable bacterial infection |
| PT/INR | INR 1.4 | Mild coagulation abnormality |
| Liver function tests | Mildly raised AST/ALT | Possible sepsis-related hepatic dysfunction |
| Urinalysis | Concentrated urine, no pyuria | Consistent with dehydration/poor perfusion |
| Blood cultures | Pending at admission | Obtain before antibiotics if this does not delay treatment |
| Sputum Gram stain/culture | Pending | Identify respiratory pathogen and guide de-escalation |
12. Special Investigations
| Investigation | Finding |
|---|
| Chest X-ray | Right lower lobe consolidation with patchy bilateral infiltrates |
| Bedside lung ultrasound | Right basal consolidation with air bronchograms; small pleural effusion |
| ECG | Sinus tachycardia, no acute ischemic changes |
| Point-of-care echocardiography | Hyperdynamic left ventricle; no major regional wall-motion abnormality; no obvious pericardial effusion |
| Ultrasound-guided fluid responsiveness assessment | Passive leg raise produces improved stroke volume, suggesting possible fluid responsiveness initially |
| SOFA score | Elevated due to hypotension/vasopressor requirement, hypoxemia, thrombocytopenia, altered sensorium, and renal dysfunction |
| APACHE II score | To be calculated on ICU admission for prognostic assessment |
13. Medical Diagnosis
Septic shock due to severe community-acquired pneumonia, with acute hypoxemic respiratory failure, acute kidney injury, lactic acidosis, and septic encephalopathy.
14. Medications and Therapeutic Management
Medication selection and dose must be verified against local antimicrobial guidelines, renal function, allergy history, culture reports, and prescriber orders.
| Medication / Therapy | Example order | Rationale |
|---|
| Balanced crystalloid IV fluid | Initial 30 mL/kg, then reassess using dynamic measures | Restore intravascular volume and tissue perfusion |
| Norepinephrine infusion | Titrate IV infusion to maintain MAP at or above 65 mmHg | First-line vasopressor for persistent hypotension |
| Piperacillin-tazobactam | 4.5 g IV every 6-8 hours, adjusted for renal function | Empiric broad-spectrum treatment for severe pneumonia/sepsis |
| Azithromycin | 500 mg IV once daily | Covers atypical respiratory organisms |
| Vancomycin | Added only if MRSA risk factors or local epidemiology indicate | Covers resistant Gram-positive organisms |
| Hydrocortisone | 200 mg/day IV only if shock persists despite fluids and vasopressors | Consider for refractory septic shock |
| Oxygen therapy | Titrate to SpO₂ target, commonly 88%-92% in COPD if CO₂ retention is a concern, otherwise individualized | Correct hypoxemia |
| Nebulized salbutamol + ipratropium | As prescribed | Relieve bronchospasm in COPD |
| Regular insulin infusion or correctional insulin | Target glucose generally 140-180 mg/dL in ICU | Control hyperglycemia and avoid hypoglycemia |
| Paracetamol | 500-1,000 mg IV/oral as prescribed | Fever and pain relief |
| Pantoprazole | 40 mg IV once daily if stress-ulcer prophylaxis indicated | Prevent stress-related mucosal bleeding in high-risk ICU patient |
| Enoxaparin | 40 mg subcutaneous daily, adjust/avoid if severe renal impairment or bleeding risk | Venous thromboembolism prophylaxis |
| Renal dose adjustment | Review all nephrotoxic medicines | Reduce worsening acute kidney injury |
The
SCCM sepsis guideline suggests at least 30 mL/kg IV crystalloid within the first 3 hours for sepsis-induced hypoperfusion or septic shock, while using dynamic reassessment rather than static signs alone. It also supports early norepinephrine when perfusion remains inadequate. A recent
meta-analysis of norepinephrine also evaluated its use in septic shock.
15. Nursing Care Plan
Nursing Diagnosis 1: Ineffective Tissue Perfusion
Related to: Vasodilation, capillary leak, and hypotension secondary to septic shock.
Evidenced by: BP 82/48 mmHg, MAP below 65 mmHg, raised lactate, cold extremities, delayed capillary refill, and oliguria.
Goals/Expected Outcomes
- Maintain MAP at or above 65 mmHg.
- Urine output reaches at least 0.5 mL/kg/hour.
- Capillary refill improves to less than 2 seconds.
- Serum lactate shows a downward trend.
- Mental status improves.
Nursing Interventions and Rationale
| Intervention | Rationale |
|---|
| Monitor BP continuously through arterial line if available; record MAP frequently. | Detects shock severity and response to fluids/vasopressors. |
| Monitor pulse quality, skin temperature, capillary refill, peripheral color, and mental status. | These are clinical indicators of tissue perfusion. |
| Administer IV fluids as prescribed and monitor response to each bolus. | Supports circulating volume while avoiding fluid overload. |
| Administer/titrate norepinephrine according to prescription and ICU protocol. | Maintains adequate perfusion pressure when fluids are insufficient. |
| Maintain accurate hourly intake-output charting. | Oliguria can indicate impaired renal perfusion or worsening AKI. |
| Monitor serum lactate and ABG as ordered. | Tracks adequacy of tissue oxygen delivery and acid-base status. |
| Elevate legs briefly or perform passive leg raise if directed. | May help assess fluid responsiveness. |
| Assess for pulmonary crackles, increasing oxygen need, raised JVP, or edema after fluid administration. | Detects possible fluid overload. |
Evaluation
- MAP maintained at 68-75 mmHg with decreasing norepinephrine requirement.
- Urine output improves to 0.6 mL/kg/hour.
- Lactate decreases from 4.8 to 2.9 mmol/L.
- Peripheral perfusion and sensorium improve.
Nursing Diagnosis 2: Impaired Gas Exchange
Related to: Alveolar inflammation and consolidation secondary to pneumonia.
Evidenced by: Dyspnea, RR 32/minute, SpO₂ 86% on room air, PaO₂ 62 mmHg, crackles, and use of accessory muscles.
Goals/Expected Outcomes
- Maintain prescribed oxygen saturation target.
- Respiratory rate decreases toward normal range.
- Patient demonstrates reduced work of breathing.
- ABG and oxygenation improve.
- No progression to severe respiratory failure.
Nursing Interventions and Rationale
| Intervention | Rationale |
|---|
| Monitor respiratory rate, work of breathing, lung sounds, SpO₂, and ABG results. | Identifies worsening hypoxemia and respiratory fatigue early. |
| Position in semi-Fowler's or high-Fowler's position unless contraindicated. | Promotes lung expansion and eases breathing. |
| Administer oxygen as prescribed and titrate to target saturation. | Treats hypoxemia. |
| Encourage coughing and deep breathing when conscious and stable. | Helps mobilize secretions. |
| Perform suctioning when indicated using aseptic technique. | Removes retained airway secretions and reduces airway obstruction. |
| Assist with non-invasive ventilation or intubation preparation if worsening respiratory distress occurs. | Prevents delay in airway management. |
| Administer antibiotics, nebulizers, and antipyretics as prescribed. | Treats infection, reduces bronchospasm, and decreases oxygen demand from fever. |
| Monitor for ARDS: worsening hypoxemia, bilateral infiltrates, and poor response to oxygen. | Sepsis can progress to acute respiratory distress syndrome. |
Evaluation
- SpO₂ maintained at the prescribed target on reduced oxygen support.
- Respiratory rate decreases to below 24/minute.
- Work of breathing and accessory muscle use decrease.
Nursing Diagnosis 3: Hyperthermia
Related to: Infectious process secondary to pneumonia.
Evidenced by: Temperature 39.2°C, chills, tachycardia, and elevated inflammatory markers.
Goals/Expected Outcomes
- Temperature reduces to below 38°C within 24-48 hours.
- Patient is comfortable and adequately hydrated.
- No febrile complications such as worsening delirium or increased oxygen demand.
Nursing Interventions
- Monitor temperature at least every 4 hours, or more often if unstable.
- Administer prescribed antipyretic medication.
- Use light bedding and tepid sponging if appropriate.
- Obtain cultures as prescribed before antimicrobial therapy where this does not delay treatment.
- Administer antibiotics on time and document exact administration time.
- Monitor for adverse effects of antimicrobials, including diarrhea, rash, renal dysfunction, or infusion reactions.
- Encourage/maintain fluid administration as prescribed.
Evaluation
- Temperature decreases to 37.5-38°C.
- Chills reduce and patient appears more comfortable.
Nursing Diagnosis 4: Risk for Acute Kidney Injury/Worsening Renal Function
Related to: Hypotension, sepsis-associated inflammation, dehydration, and possible nephrotoxic medication exposure.
Goals/Expected Outcomes
- Maintain urine output of at least 0.5 mL/kg/hour.
- Creatinine and urea stabilize or improve.
- Electrolytes remain within safe limits.
- Patient remains free from avoidable nephrotoxic injury.
Nursing Interventions
- Record hourly urine output via Foley catheter.
- Monitor daily weight, fluid balance, serum creatinine, urea, potassium, and bicarbonate.
- Avoid unnecessary nephrotoxic medications and ensure renal-dose adjustment of prescribed drugs.
- Maintain prescribed hemodynamic goals.
- Notify the clinician for persistent oliguria, rising creatinine, hyperkalemia, or worsening acidosis.
- Prepare for nephrology consultation or renal replacement therapy if indicated.
Evaluation
- Urine output improves.
- Creatinine trends toward baseline.
- No dangerous hyperkalemia, severe acidosis, or fluid overload develops.
Nursing Diagnosis 5: Acute Confusion
Related to: Sepsis-associated encephalopathy, hypoxemia, hypotension, fever, and metabolic disturbances.
Evidenced by: Disorientation, drowsiness, and GCS 13/15.
Goals/Expected Outcomes
- GCS remains stable or improves.
- Patient becomes oriented as infection and perfusion improve.
- Patient remains free from falls, self-extubation, or removal of invasive lines.
Nursing Interventions
- Assess GCS, orientation, pupil reaction, and delirium status regularly.
- Reorient the patient calmly using simple words, clock, calendar, and family presence where appropriate.
- Maintain day-night routine and minimize unnecessary noise at night.
- Correct hypoxemia, hypotension, fever, hypoglycemia/hyperglycemia, and electrolyte imbalance.
- Use safety measures: bed rails as appropriate, close observation, secure invasive devices.
- Avoid physical restraints unless absolutely necessary and authorized.
Evaluation
- GCS improves to 15/15.
- Patient becomes oriented to person, place, and time.
- No injury or device removal occurs.
Nursing Diagnosis 6: Risk for Infection Related to Invasive Devices
Risk factors: Central venous catheter, arterial line, urinary catheter, IV cannulas, possible mechanical ventilation.
Goals/Expected Outcomes
- No evidence of catheter-associated infection or ventilator-associated pneumonia.
- All invasive devices are removed as soon as no longer required.
Nursing Interventions
- Perform hand hygiene before and after every patient contact.
- Use aseptic technique for line care, medication administration, suctioning, and urinary-catheter care.
- Assess line sites daily for redness, discharge, pain, or swelling.
- Review the need for every invasive device during each shift.
- Maintain head-end elevation at 30-45 degrees when not contraindicated.
- Provide oral care regularly, particularly if mechanically ventilated.
- Follow the ICU ventilator-associated pneumonia prevention bundle if intubated.
16. Ongoing Monitoring Plan
| Parameter | Frequency/Target |
|---|
| MAP and hemodynamics | Continuous or very frequent monitoring; target MAP at least 65 mmHg unless individualized |
| Heart rate, respiratory rate, SpO₂ | Continuous |
| Temperature | At least every 4 hours |
| GCS/delirium assessment | Every 2-4 hours in unstable patient |
| Urine output | Hourly |
| Input-output balance | Hourly and cumulative 24-hour review |
| Blood glucose | Every 1-4 hours if on insulin infusion |
| Lactate | Repeat according to local protocol until improving/normalized |
| CBC, renal function, electrolytes | At least daily, more frequently if unstable |
| ABG | As clinically indicated |
| Culture results | Daily review for antibiotic de-escalation |
| Sedation, pain, pressure injury risk, nutrition | Each ICU shift |
17. Discharge/Transfer Criteria From ICU
The patient may be considered for step-down transfer when:
- Hemodynamically stable without vasopressors
- Adequate oxygenation on low-flow oxygen or room air
- Improving pneumonia and inflammatory markers
- Urine output and renal function stable or improving
- GCS back to baseline or stable
- No need for invasive organ support
- Antibiotic plan finalized based on culture findings
- Family educated about medication adherence, diabetes control, vaccination, smoking cessation, and warning signs of recurrent infection
Recent-evidence note: the most relevant recent systematic reviews identified focused on adjuncts such as echocardiography and norepinephrine use in septic shock, including
PMID 39419883 and
PMID 39516335. These do not replace local ICU protocols or the Surviving Sepsis Campaign recommendations.