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Paediatric weight estimation — DIPIMC MCQ

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ModeratePaediatric and Obstetric EmergenciesPaediatric weight estimationDIPIMCDipIMC

A 4-year-old child needs emergency drug dosing but cannot be weighed at the scene.

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

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Correct answer: C — 16 kg

Using a recognised age-based estimate for children aged 1-5 years, weight equals (age plus 4) multiplied by 2, giving (4 plus 4) times 2, or 16 kg. The lower figures (A and B) would dangerously underdose and the higher figures (D and E) would overdose. A reliable weight estimate underpins all weight-based paediatric drug and fluid calculations.

Reference: APLS; JRCALC Clinical Guidelines