skip to main content

Acute haematogenous osteomyelitis — RACP Paediatrics MCQ

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

ModerateInfectious diseases and immunisationAcute haematogenous osteomyelitisRACP Paediatrics

A 5-year-old has fever and refuses to weight-bear three days after a minor fall. Hip motion is comfortable, but there is focal tenderness over the proximal tibia and CRP is elevated. Blood cultures later grow Staphylococcus aureus. What is the most likely diagnosis?

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

Reveal the answer and explanation

Correct answer: C — Acute haematogenous osteomyelitis

Fever, refusal to weight-bear, focal bony tenderness and S. aureus bacteraemia indicate acute haematogenous osteomyelitis. Transient synovitis localises to the hip and should not cause bacteraemia. Early imaging and targeted antibiotics help prevent abscess and growth-plate complications.

Reference: RCH Bone and joint infection guideline; Therapeutic Guidelines (eTG)