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Paediatric appendicitis — RCPSC EM MCQ

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ModeratePaediatric emergenciesPaediatric appendicitisRCPSC EM

A 9-year-old has fever, migratory right lower quadrant pain and vomiting. HR is 122, temperature is 38.5°C, and examination shows guarding at McBurney point. Pregnancy is not relevant. What is the most appropriate investigation?

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Correct answer: B — Abdominal ultrasound as first-line imaging for suspected appendicitis

Ultrasound is typically first-line imaging for suspected paediatric appendicitis to reduce radiation, with CT or MRI reserved for equivocal cases depending on local resources.

Reference: Canadian Paediatric Society guidance