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Exertional heat stroke — RCPSC EM MCQ

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EasyEnvironmental emergenciesExertional heat strokeRCPSC EM

A marathon runner collapses on a humid day. Rectal temperature is 41.2°C, he is confused, skin is hot, sodium is 140 mmol/L, and point-of-care glucose is normal. What is the most appropriate next step?

Educational content. Not a substitute for clinical judgement or local policy.

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Correct answer: CImmediate evaporative or cold-water cooling while supporting airway, breathing and circulation

Exertional heat stroke requires immediate aggressive cooling; antipyretics do not treat the heat-load mechanism.

Reference: Wilderness Medical Society heat illness guidance; Canadian sports medicine emergency practice