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Croup — RCPSC EM MCQ

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EasyPaediatric emergenciesCroupRCPSC EM

A 4-year-old is brought in winter with barking cough and inspiratory stridor when upset. Temperature is 37.8°C, oxygen saturation is 97% on room air and there is mild sternal indrawing. The child is alert, drinking and settles in the parent's arms. What is the most likely diagnosis?

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Correct answer: B — Croup

Barking cough, low-grade fever and stridor that worsens with agitation are typical of viral croup. The child is not toxic and is maintaining oxygenation, making epiglottitis and bacterial tracheitis less likely.

Reference: Canadian Paediatric Society croup guidance; PALS