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✅ Correct Answer: B. Stop the volatile anaesthetic immediately and administer Dantrolene.

Explanation:

• Ye Malignant Hyperthermia ke classic signs hain.

• Immediate management:

° Stop all triggering agents (volatile anaesthetics and succinylcholine).

° Administer Dantrolene as soon as possible.

° Hyperventilate with 100% oxygen.

° Start active cooling and treat hyperkalemia/acidosis if present.

✅ Correct Answer: B. Respiratory Acidosis

Why?
• pH ↓ = Acidemia
• PaCO₂ ↑ = Respiratory cause
• HCO₃⁻ normal = Acute (uncompensated) respiratory acidosis

Clinical pearl: Think "CO₂ high = respiratory problem" before looking at compensation.

✅ Correct Answer B. Ephedrine
(if hypotension with bradycardia after spinal/GA and perfusion is compromised, ephedrine is a common first-line choice in many OT settings; management still depends on the cause and clinical context.)

✅ Correct Answer: C) Cardiogenic Shock

Explanation:
This hemodynamic pattern strongly suggests pump failure:

🔹 ↓ Cardiac Output → impaired ventricular pumping

🔹 ↑ CVP → elevated right-sided filling pressure/venous congestion

🔹 ↑ SVR → compensatory peripheral vasoconstriction to maintain BP

🔹 ↓ MAP → inadequate forward flow despite compensation

🔹 Basal crepitations → pulmonary congestion, supporting cardiac dysfunction

Cardiogenic shock = ↓ CO + ↑ filling pressures + ↑ SVR.

This pattern helps differentiate it from hypovolemic shock, where filling pressures are usually low, and distributive shock, where SVR is typically reduced.

✅ Correct Answer: A) Acute Respiratory Alkalosis

Explanation:

•pH is high → alkalemia.

•PaCO₂ is low → respiratory cause.

•HCO₃⁻ is normal → no significant renal compensation, indicating an acute process.

High pH + Low PaCO₂ + Normal HCO₃⁻ = Acute Respiratory Alkalosis.

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