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AGMC Tripura MBBS 2nd Year — Complete Exam Preparation Guide

Target: 75%+ | Microbiology + Pathology + Pharmacology

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EXAM PATTERN (AGMC / Tripura University)

• Each subject: 2 Papers × 100 marks = 200 theory + 100 practical = 300 marks total
• Paper structure (NMC CBM-UG):
  • Part A: MCQs (1 mark each)
  • Part B: Short Essay Questions (SQ) — 5 marks each
  • Part C: Long Essay Questions (LQ) — 10 marks each
  • Clinical/Case-based questions increasingly featured post-2019
• Passing: ≥50% combined, ≥40% separately in theory and practical
• AGMC-specific PYQs are not publicly archived; this guide uses NMC CBM-UG pattern from MUHS, MGR, WBUHS, KNRUHS — identical syllabus

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MICROBIOLOGY

Paper I vs Paper II Split

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Chapter-wise Topics with Exam Frequency

Paper I

Paper II

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Most Repeated Long Questions (Microbiology)

1. Describe sterilization by autoclave. How is efficacy tested? (Asked almost every year)
2. Explain mechanisms of drug resistance in bacteria. Discuss antimicrobial susceptibility testing.
3. Classify hypersensitivity reactions (Gell & Coombs). Describe Type I (Anaphylaxis) with mediators.
4. Describe structure and function of immunoglobulins. Classify antibodies.
5. Discuss horizontal gene transfer in bacteria (transformation, transduction, conjugation).
6. Write about the complement system - classical, alternate, and lectin pathways.
7. Discuss vaccines: live attenuated vs killed. Examples. Cold chain.
8. Clinical LQ (Staph): A 30-year-old male has abscess with gram-positive cocci in clusters. Identify organism. Enumerate virulence factors. Discuss lab diagnosis and treatment.
9. Discuss pathogenesis, lab diagnosis, and prevention of tuberculosis. Note on MDR-TB.
10. Describe Widal test. Discuss lab diagnosis of enteric fever. What are its limitations?
11. Clinical LQ (HIV): A patient presents with fever, weight loss, generalized lymphadenopathy, and persistent diarrhea. Discuss pathogenesis, lab diagnosis, and prophylaxis of HIV/AIDS. (Appears in almost every paper)
12. Describe serological markers of Hepatitis B. Significance of HBsAg, anti-HBs, HBeAg.
13. Describe pathogenesis, lab diagnosis, and prevention of Rabies. Discuss PEP.
14. Describe life cycle of Plasmodium falciparum. Discuss lab diagnosis of malaria.
15. Discuss Kala-azar (Visceral Leishmaniasis) - pathogenesis, clinical features, lab diagnosis, treatment.
16. Life cycle of Taenia solium. Clinical features and lab diagnosis of neurocysticercosis.

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Most Repeated Short Questions (Microbiology)

• Autoclave (principle, temperature, time, uses)
• Exotoxin vs Endotoxin (table format)
• Bacterial spores (formation, staining, significance)
• MacConkey agar (principle and use)
• Enrichment media (examples and purpose)
• Bacterial growth curve (phases + diagram)
• Pasteurization (HTST vs LTLT)
• Hot air oven vs Autoclave
• Anaphylaxis (Type I hypersensitivity)
• ELISA (principle, types: direct, indirect, sandwich)
• Monoclonal antibodies (production and uses)
• MHC (HLA) - class I vs class II
• Koch's postulates

• MRSA - mechanism of resistance, treatment
• Widal test (principle, interpretation, limitations)
• Virulence factors of Staphylococcus aureus
• Lab diagnosis of leprosy
• Gas gangrene (C. perfringens)
• Botulism (toxin mechanism, clinical features)
• Leptospirosis | Brucellosis
• Lab diagnosis of UTI

• Hepatitis C virus (markers, treatment)
• Dengue virus (NS1, IgM/IgG serology)
• Rotavirus (diarrhea in children)
• Herpes simplex virus
• Antigenic drift vs Antigenic shift (Influenza)

• Candidiasis (oral, esophageal, systemic)
• Cryptococcus neoformans (India ink, meningitis in HIV)
• Aspergillosis (types, lab diagnosis)
• Dermatophytes (classification, KOH mount)

• Life cycle of Ascaris lumbricoides
• Hookworm (Ancylostoma) - life cycle, lab diagnosis
• Entamoeba histolytica vs Entamoeba coli differences
• Giardia lamblia (trophozoite morphology, lab diagnosis)
• Sheathed microfilaria (Wuchereria, Brugia, Loa loa differences)
• Hydatid cyst (Echinococcus granulosus)
• Toxoplasma gondii (congenital toxoplasmosis)
• Neurocysticercosis

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Clinical/Reasoning Questions (Microbiology)

1. "A child presents with seizures. MRI shows ring-enhancing lesions." → Neurocysticercosis (Taenia solium)
2. "Patient from Assam with fever, splenomegaly, ring forms + crescent gametocytes in smear." → P. falciparum malaria
3. "HIV+ patient has white plaques in mouth." → Candida albicans
4. "Neonate with jaundice, mother is HBsAg positive. Interpret serology and discuss prophylaxis." → HBV vertical transmission
5. "Fisherman develops fever with conjunctival suffusion and myalgia after flooding." → Leptospirosis
6. "Patient with dog bite presents with hydrophobia." → Rabies - lab confirmation + PEP
7. "CSF gram stain shows gram-negative diplococci." → Neisseria meningitidis
8. "Diabetic patient has black nasal discharge with orbital involvement." → Mucormycosis

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Priority: Skip vs Must-Do (Microbiology)

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PATHOLOGY

Paper I vs Paper II Split

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Chapter-wise Topics with Exam Frequency

Paper I - General Pathology

Paper II - Systemic Pathology

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Most Repeated Long Questions (Pathology)

1. Define necrosis. Classify and describe different types. Compare with apoptosis. (Extremely repeated)
2. Describe vascular and cellular events of acute inflammation in detail.
3. Discuss chemical mediators of acute inflammation and their role.
4. Define wound healing. Describe healing by secondary intention. Factors influencing healing.
5. Define edema. Classify. Discuss etiopathogenesis of generalized edema.
6. Define thrombosis. Discuss Virchow's triad, pathogenesis, morphology, and fate of thrombus.
7. Define and classify shock. Discuss pathogenesis of septic shock in detail. Morphology of lungs and kidneys in shock.
8. Differences between benign and malignant tumors. Discuss modes of spread of malignant tumors.
9. Discuss chemical carcinogenesis. Add note on oncogenic viruses (HPV).
10. Discuss graft rejection (hyperacute, acute, chronic) — types and mechanisms.

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Most Repeated Short Questions (Pathology)

• Apoptosis (intrinsic vs extrinsic pathways)
• Gangrene (types: dry, wet, gas)
• Granuloma (definition, types, examples: TB, leprosy, sarcoid)
• Keloid vs hypertrophic scar
• Chemotaxis (mechanism + chemotactic agents)
• Giant cells (Langhans, foreign body, Touton, Warthin-Finkeldey)
• Pulmonary embolism | Fat embolism
• DIC (disseminated intravascular coagulation)
• SLE (pathogenesis and LE cell)
• Down syndrome (trisomy 21)
• Tumor markers (AFP, CEA, PSA, CA-125, CA 19-9)
• Paraneoplastic syndrome
• Oncogenes vs Tumor suppressor genes
• Free radical injury (ROS, sources, damage)
• Metaplasia (examples)

• Sickle cell disease (HbS, vaso-occlusion)
• Thalassemia (alpha vs beta differences)
• Multiple myeloma (Bence Jones protein, bone lesions)
• Reed-Sternberg cell (appearance, significance)
• CML - Philadelphia chromosome, BCR-ABL
• Infective endocarditis (vegetations)
• Rheumatic fever / Aschoff body
• Bronchial asthma pathology
• Mesothelioma (asbestos)
• Peptic ulcer (gastric vs duodenal differences)
• Hepatocellular carcinoma (HCC) - risk factors
• Jaundice (pre-hepatic, hepatic, post-hepatic)
• Nephrotic vs Nephritic syndrome differences
• Wilms' tumor (nephroblastoma)
• Osteosarcoma (radiological and histological features)
• Gout and tophi
• Fibrocystic disease of breast
• Hyaline membrane disease (NRDS)
• Hemolytic disease of newborn (HDN)

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Clinical/Reasoning Questions (Pathology)

1. "A 45-year-old smoker with progressive cough, hemoptysis, hilar mass on X-ray." → Bronchogenic carcinoma (small cell)
2. "A 60-year-old with chest pain and ST elevation. Describe morphological changes at 6h, 24h, 1 week." → MI zones of necrosis
3. "A 30-year-old female has malar rash, arthritis, proteinuria, ANA positive." → SLE - pathogenesis
4. "Blood film shows hypersegmented neutrophils and macrocytic RBCs." → Megaloblastic anemia
5. "A young child in Northeast India has massive splenomegaly, anemia, and weight loss." → Kala-azar (systemic pathology)
6. "Patient with ascites, spider nevi, jaundice, portal hypertension, bridging fibrosis on histology." → Cirrhosis of liver

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Priority: Skip vs Must-Do (Pathology)

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PHARMACOLOGY

Paper I vs Paper II Split

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Chapter-wise Topics with Exam Frequency

Paper I

Paper II

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Most Repeated Long Questions (Pharmacology)

1. Describe different routes of drug administration. Explain first-pass metabolism with examples. (Asked in almost every paper)
2. Draw and explain plasma concentration-time curve after oral administration. Explain pharmacokinetic parameters.
3. Classify adverse drug reactions. Discuss mechanisms of drug toxicity with examples.
4. Describe drug receptor interactions. Classify agonists and antagonists.
5. Explain enzyme induction and inhibition with clinical examples.

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Most Repeated Short Questions (Pharmacology)

• Bioavailability (definition, factors, first-pass effect)
• Plasma protein binding (clinical significance)
• Half-life (T½) - definition, clinical importance
• Loading dose vs Maintenance dose
• Therapeutic index (TI)
• Tolerance vs Tachyphylaxis (difference + examples)
• Drug dependence (physical vs psychological)
• Teratogenicity (FDA categories, examples)
• Prescription writing
• Prodrug (examples: enalapril, codeine)

• Adrenaline reversal (Dale's vasomotor reversal)
• Selective vs non-selective beta-blockers
• Muscarinic vs Nicotinic receptors
• Prazosin (mechanism, uses)
• Dopamine (dose-dependent effects)
• Mydriatics and miotics

• Aspirin (mechanism, uses, side effects - Reye's syndrome)
• Paracetamol overdose (mechanism, antidote: N-acetylcysteine)
• Drugs for migraine (triptans, ergotamine)
• Drugs for Parkinson's (L-DOPA + carbidopa)
• Lithium (uses, toxicity, narrow TI)
• Diazepam (uses: status epilepticus, alcohol withdrawal)
• Local anesthetics (lidocaine mechanism)
• Naloxone (mechanism, uses in opioid overdose)

• Digoxin toxicity (features, management)
• Statins (mechanism - HMG-CoA reductase inhibitors)
• Anticoagulants in pregnancy (heparin only - why not warfarin)
• Drugs contraindicated in pregnancy
• Salbutamol (mechanism, uses in asthma)
• Theophylline (mechanism, toxicity)
• Montelukast (leukotriene antagonist)
• Thiazides (mechanism in hypertension)
• Spironolactone (uses in heart failure)

• PTU vs Carbimazole differences
• Radioactive iodine (131I) mechanism
• OCP mechanism, advantages, contraindications
• Mifepristone (mechanism, uses)
• Aminoglycosides - nephrotoxicity and ototoxicity
• Tetracyclines - contraindications (pregnancy, children < 8 years)
• Chloramphenicol - grey baby syndrome
• Metronidazole (anaerobes, mechanism)
• Cotrimoxazole (trimethoprim + sulfamethoxazole synergy)
• Azoles (mechanism: ergosterol synthesis inhibition)
• Drug of choice for malaria (chloroquine, ACT)
• Drug for filariasis (DEC - diethylcarbamazine)

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Clinical Scenario Questions (Pharmacology)

1. "Patient on warfarin starts rifampicin for TB. What happens to warfarin effect and why?" → Enzyme induction by rifampicin → decreased warfarin → need dose increase
2. "A farmer is unconscious with excess secretions, bradycardia, and miosis." → Organophosphate poisoning → Atropine + Pralidoxime
3. "Type 2 DM patient has CKD (eGFR 30). Which hypoglycemic drug is contraindicated and why?" → Metformin contraindicated → lactic acidosis risk
4. "Pregnant woman develops DVT. Which anticoagulant and why not warfarin?" → Heparin (doesn't cross placenta); warfarin = teratogenic
5. "Patient develops anaphylaxis after penicillin injection. What do you administer and why?" → Adrenaline 0.5 mg IM (vasoconstriction, bronchodilation, mast cell inhibition)
6. "A patient on antiepileptic therapy becomes pregnant. What are the concerns?" → Valproate → neural tube defects; phenytoin → fetal hydantoin syndrome; use folic acid supplementation
7. "Asthmatic patient prescribed propranolol for hypertension. Comment." → Beta-2 blockade → bronchoconstriction → dangerous; use cardioselective BB or CCB instead
8. "Patient develops status epilepticus in ER. Pharmacological management?" → IV diazepam/lorazepam → if fails, phenytoin IV → if fails, phenobarbitone or general anesthesia

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Priority: Skip vs Must-Do (Pharmacology)

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30-DAY STUDY PLAN

Daily Framework

• Morning (6-9 AM): Fresh reading of new topic
• Afternoon (2-5 PM): Second subject + previous day revision
• Evening (6-9 PM): PYQ practice + MCQs + short notes

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Week 1 (Days 1-7): Foundation

Week 2 (Days 8-14): Core High-Yield

Week 3 (Days 15-21): Systemic Topics

Week 4 (Days 22-30): Antimicrobials + Final Revision

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Cross-Subject Integration (Study these together)

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Exam Writing Tips

1. Introduction: Define the term (1 sentence)
2. Classification/Types (where applicable)
3. Pathogenesis/Mechanism (use flowcharts - examiners love them)
4. Lab/Diagnostic features (most critical in Micro and Path)
5. Clinical features (brief)
6. Management/Treatment (brief)
7. Conclusion

• Underline key terms, use subheadings

• 5-6 clearly listed points in bullet form OR short paragraph
• Include a diagram wherever possible (life cycles, lab test principles)

1. Answer ALL questions - no negative marking in theory
2. Draw diagrams - autoclave diagram, Plasmodium life cycle, drug receptor curves earn extra marks
3. Use comparison tables - exotoxin vs endotoxin, Crohn's vs UC, heparin vs warfarin
4. At least 60% of questions come from repeated topics

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Quick Mnemonics

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Useful Online Resources

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