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Anaphylaxis — RCPSC EM MCQ

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EasyRespiratory emergenciesAnaphylaxisRCPSC EM

A 15-year-old boy develops urticaria, wheeze, throat tightness, and vomiting 10 minutes after eating peanuts. Blood pressure is 88/44 mmHg and oxygen saturation is 92%. What is the most appropriate initial management?

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

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Correct answer: C — Intramuscular epinephrine into the mid-anterolateral thigh

Anaphylaxis with airway, respiratory, gastrointestinal, and cardiovascular features requires immediate IM epinephrine. Antihistamines and steroids are adjuncts and should not delay epinephrine.

Reference: Canadian Society of Allergy and Clinical Immunology anaphylaxis guidance; PALS