Acute Rheumatic Fever — RACP Paediatrics MCQ

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ModerateCardiologyAcute Rheumatic FeverRACP Paediatrics

A 7-year-old boy presents 3 weeks after a sore throat with fever, a new pansystolic murmur at the apex, migratory polyarthritis, and an elevated ASO titre. ECG shows a prolonged PR interval. Which criterion from the Jones criteria is NOT a major manifestation?

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Correct answer: A — Prolonged PR interval

The revised Jones criteria for acute rheumatic fever include major manifestations: carditis (clinical or subclinical), polyarthritis (in low-risk populations) or monoarthritis (in high-risk populations), chorea, erythema marginatum, and subcutaneous nodules. Prolonged PR interval is a minor criterion, not a major one. Other minor criteria include fever, elevated ESR/CRP, and arthralgia.

Reference: RHDAustralia – 2024 – Australian Guideline for Prevention, Diagnosis and Management of Acute Rheumatic Fever and Rheumatic Heart Disease