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Exertional heat stroke — ABEM Board MCQ

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EasyEnvironmental emergenciesExertional heat strokeABEM Board

A 21-year-old woman arrives as ESI 2 with hyperthermia after an outdoor race. Temperature is 41.2 C, HR 150, BP 104/62, and she is confused with hot skin. Sodium is 148 mEq/L and CK is 2200 U/L. Which of the following is the most important immediate intervention?

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

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Correct answer: ABegin rapid evaporative or ice-water cooling

Exertional heat stroke is defined by hyperthermia and CNS dysfunction; immediate rapid cooling is the life-saving priority.

Reference: Wilderness Medical Society heat illness guideline