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Exertional heat stroke — RCPSC EM MCQ

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HardEnvironmental emergenciesExertional heat strokeRCPSC EM

A 23-year-old tree planter presents after working in extreme heat. Temperature is 41.2°C, heart rate is 150/min and he is confused. Skin is hot, creatinine is 190 µmol/L and CK is 9,500 U/L. What is the most appropriate next step?

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Correct answer: D — Start immediate evaporative or cold-water cooling while supporting airway, circulation and rhabdomyolysis care

Exertional heat stroke is defined by severe hyperthermia with CNS dysfunction. Rapid cooling is the priority and should begin immediately; organ injury monitoring and fluid resuscitation follow.

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