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Newborn Screening for CHD — RACP Paediatrics MCQ

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EasyCardiologyNewborn Screening for CHDRACP Paediatrics

A well neonate is found to have an oxygen saturation of 93% on the right hand and 94% on either foot during routine newborn screening. There is no murmur. The baby is pink and feeding well. What is the most appropriate action?

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Correct answer: E — Repeat pulse oximetry in 1–2 hours

Australian newborn screening guidelines recommend that SpO2 ≥95% in the right hand or either foot is a pass, <90% is an immediate fail requiring investigation, and 90–94% requires repeat testing in 1–2 hours. If the result remains 90–94% on repeat, echocardiography is indicated. SpO2 of 93% warrants repeat measurement before escalation.

Reference: Australian Government Department of Health – 2024 – Newborn Pulse Oximetry Screening