skip to main content

Kawasaki disease — RACP Paediatrics MCQ

Instant feedback + full explanation. One question, done properly.

ModerateIDKawasaki diseaseRACP Paediatrics

An 18-month-old presents with 7 days of persistent high fever, bilateral non-exudative conjunctival injection, cracked red lips, a BCG site reaction, and irritability. CRP is 120 mg/L. Blood cultures are negative. What is the most likely diagnosis?

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

Reveal the answer and explanation

Correct answer: B — Kawasaki disease

Prolonged fever (≥4 days per updated criteria) with features including conjunctivitis, oral mucosal changes, BCG site reaction (common in Australia/NZ), and markedly elevated inflammatory markers in a young child is Kawasaki disease. Not all 5 principal features need be present (incomplete KD).

Reference: RCH Melbourne – 2024 – Kawasaki Disease CPG