Exertional heat stroke — DipIMC MCQ

Correct answer: E — Start immediate active cooling with cold-water immersion

Option E is correct because Exertional heat stroke is time-critical and rapid cooling before transport can be life-saving when available. Option D is less appropriate because oxygen may be supportive, but it does not address the defining time-critical problem first; option C is less appropriate because vascular access is useful, but it should not delay the immediate priority. Option A is less appropriate because it is plausible in a different scenario but suboptimal for the features described; option B is less appropriate because delay would increase clinical risk. Clinical pearl: in DipIMC-style questions, the best answer is the intervention that changes outcome earliest in the pre-hospital phase.

Reference: JRCALC Guidelines