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Oral rehydration salts — GPhC CRA MCQ

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HardGastrointestinal TherapeuticsOral rehydration saltsGPhC CRA

A 14 kg child with gastroenteritis has clinical dehydration but no shock or red-flag features. The child is alert and can drink, although large drinks trigger vomiting. Which initial oral rehydration plan is most appropriate?

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

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Correct answer: B — 700 mL over 4 hours in frequent small amounts

NICE recommends 50 mL/kg of low-osmolarity oral rehydration solution over four hours for clinical dehydration without shock, given frequently in small amounts. For 14 kg, 14 × 50 mL = 700 mL. The child should be reassessed during rehydration; persistent vomiting, deterioration or new red flags require escalation.

Reference: NICE CG84: Gastroenteritis in under 5s: https://www.nice.org.uk/guidance/CG84/chapter/recommendations