Patent Ductus Arteriosus — RACP Paediatrics MCQ

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EasyCardiologyPatent Ductus ArteriosusRACP Paediatrics

A well-looking term neonate has a grade 2/6 continuous murmur at the left infraclavicular area at 12 hours of life. SpO2 is 98% pre and post-ductal. What is the most likely cause?

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Correct answer: D — PDA (normal for age)

A continuous murmur at 12 hours in a well neonate most likely represents a PDA, which is physiologically normal in the first 24-48 hours.

Reference: RCH Melbourne – 2024 – Clinical Practice Guidelines: Neonatal Murmurs