skip to main content

Laryngomalacia — RACP Paediatrics MCQ

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

EasyRespiratoryLaryngomalaciaRACP Paediatrics

A 4-week-old infant has had intermittent inspiratory stridor since birth that worsens with feeding and when supine. The stridor improves with prone positioning. The infant is growing well and has no cyanosis. What is the most likely cause?

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

Reveal the answer and explanation

Correct answer: D — Laryngomalacia

Laryngomalacia is the most common cause of stridor in infants, typically presenting in the first few weeks of life. It is characterised by inspiratory stridor that worsens with feeding, crying, and supine position, and improves in prone. Most cases are self-limiting and resolve by 12-18 months.

Reference: RCH Melbourne – 2023 – Stridor CPG; RACP Paediatric Curriculum – Respiratory