Noonan Syndrome CHD — RACP Paediatrics MCQ

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ModerateCardiologyNoonan Syndrome CHDRACP Paediatrics

Most common cardiac defect in Noonan syndrome?

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Correct answer: B — Pulmonary valve stenosis (dysplastic)

Pulmonary valve stenosis (often dysplastic) in ~50-60% of Noonan cardiac cases.

Reference: RACP – 2024