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Anaphylaxis — RCPSC EM MCQ

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EasyRespiratory emergenciesAnaphylaxisRCPSC EM

A 16-year-old develops urticaria, wheeze, and throat tightness 10 minutes after eating a cookie containing peanuts. BP is 86/50 mmHg and oxygen saturation is 91%. He has vomited twice in triage. What is the most appropriate initial management?

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Correct answer: E — IM epinephrine into the mid-anterolateral thigh

IM epinephrine into the mid-anterolateral thigh is correct: the clues indicate Anaphylaxis and this option addresses the immediate ED priority. The distractors delay care, target a less likely problem, or are unsafe in this physiology.

Reference: Canadian anaphylaxis emergency practice