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GAS pharyngitis — RACP Paediatrics MCQ

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EasyIDGAS pharyngitisRACP Paediatrics

A 4-year-old presents with 3 days of sore throat, fever, and tender anterior cervical lymphadenopathy. Rapid antigen test for group A streptococcus is positive. The child has no penicillin allergy. What is the most appropriate antibiotic?

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Correct answer: D — Oral phenoxymethylpenicillin

Oral phenoxymethylpenicillin (penicillin V) for 10 days is the first-line treatment for group A streptococcal pharyngitis per Australian Therapeutic Guidelines. It targets GAS specifically with a narrow spectrum. Amoxicillin is an acceptable alternative but penicillin V is preferred.

Reference: Australian Therapeutic Guidelines – 2024 – Antibiotic