Critical Care MCQs Posted by Pujari Vinod Date August 26, 2025 Comments 0 comment Welcome to your Critical Care MCQs Name Email 1. Antidote for paracetamol poisoning is ? Atropine N-acetylcysteine Vitamin K Sodium bicarbonate None 2. In severe pancreatitis, nutrition should be given via ? NPO + TPN Early enteral feeding (nasojejunal) Parenteral lipids only Clear fluids None 3. After cardiac arrest, neurologic outcome improves with ? Hyperventilation Targeted temperature management Steroids Phenytoin None 4. In unstable patient suspected of PE, best diagnostic tool ? CT pulmonary angiogram D-dimer Bedside echocardiography V/Q scan None 5. Permissive hypercapnia is used in ARDS to prevent ? Hypotension Barotrauma Pulmonary embolism Hypoglycemia None 6. Hallmark of tension pneumothorax is ? Bilateral wheeze Tracheal deviation + hypotension Crepitations Tachycardia only None 7. Caloric need of critically ill patient ? 10 kcal/kg/da 15 kcal/kg/da 25 kcal/kg/da 40 kcal/kg/da None 8. The most sensitive marker of tissue hypoperfusion is ? CVP Serum lactate Mixed venous O₂ saturation Arterial pH None 9. The most common cause of AKI in critically ill patients is ? Post-renal obstruction Pre-renal azotemia/ischemia Glomerulonephritis Nephrolithiasis None 10. Preferred route of nutrition in critically ill is ? TPN Enteral feeding IV amino acids NPO + IV fluids None 11. Hyperkalemia with ECG changes is best treated initially with ? Insulin + glucose Kayexalate Calcium gluconate Hemodialysis None 12. Oxygen delivery device that provides most precise FiO₂ ? Nasal cannula Simple mask Venturi mask Non-rebreather None 13. Refeeding syndrome commonly causes ? Hypokalemia Hypophosphatemia Hypercalcemia Hyperuricemia None 14. Early goal-directed therapy is aimed at optimizing ? Liver perfusion Tissue oxygen delivery Fluid overload Cardiac arrhythmias None 15. CRRT is preferred over intermittent dialysis for Stable patients Hemodynamically unstable patients Outpatient dialysis Rapid correction of hyperkalemia None 16. The order not to perform CPR is ? Living will Advance directive DNR order Withdrawal of support None 17. In COPD exacerbation (pH 7.25, PaCO₂ 65, PaO₂ 55) best initial therapy is ? Continue O₂ only Non-invasive ventilation Intubation Bronchoscopy None 18. Best sedative for ventilated patient with raised ICP is ? Ketamine Propofol Midazolam Benzodiazepines None 19. Lactic acidosis most commonly results from ? Liver failure Tissue hypoxia from sepsis Hyperventilation Hypokalemia None 20. In cardiogenic shock, IABP works by ? Reducing preload Decreasing afterload & improving coronary perfusion Increasing SVR Improving contractility directly None 21. The earliest marker of myocardial ischemia is ? CK-MB Troponin I ECG changes LDH None 22. The best ventilatory strategy for status asthmaticus includes ? High tidal volume with high rate Low tidal volume with prolonged expiratory time Zero PEEP with high FiO₂ High inspiratory flow with prolonged inspiratory time None 23. Pulseless VT/VF should be treated first with ? Atropine Defibrillation Lidocaine Epinephrine None 24. Severe Tricyclic Antidepressant (TCA) overdose (wide QRS) is treated with ? Calcium gluconate Insulin Sodium bicarbonate Heparin None 25. Antidote for organophosphate poisoning ? Atropine + pralidoxime Flumazenil Naloxone Physostigmine None 26. The target CPP in TBI is ? 30–40 mmHg 50–70 mmHg >100 mmHg <40 mmHg None 27. Rescue therapy for severe ARDS with refractory hypoxemia is ? Steroids ECMO Tracheostomy Bronchodilators None 28. The Swan-Ganz catheter is most useful for ? Measuring systemic vascular resistance Directly measuring LV end-diastolic pressure Identifying brain perfusion Monitoring lactate None 29. In septic shock, recommended initial fluid resuscitation is ? 4 mL/kg 10 mL/kg 30 mL/kg 60 mL/kg None 30. Warm peripheries and bounding pulse in shock suggest ? Hypovolemic shock Cardiogenic shock Distributive shock Obstructive shock None Share: Pujari Vinod Next post Internal Medicine MCQs September 1, 2025 You may also like Fellowship Courses After MBBS in India: A Practical Career Guide December 26, 2025 Top International Certification Programs for Indian Doctors June 5, 2025 Career Options for Doctors After MBBS in India June 5, 2025
