skip to main content

Suspected hypertrophic pyloric stenosis — PARA MCQ

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

ModeratePaediatrics - GastrointestinalSuspected hypertrophic pyloric stenosisPARA

A 6-week-old boy has non-bilious projectile vomiting after feeds and remains hungry. Examination shows visible peristalsis and a small epigastric mass. What is the most appropriate investigation?

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

Reveal the answer and explanation

Correct answer: DAbdominal ultrasound with electrolyte assessment

Pyloric stenosis is investigated with abdominal ultrasound and blood tests to assess dehydration and hypochloraemic metabolic alkalosis.

Reference: NICE CKS: Vomiting in children; paediatric surgery guidance