For the 20 kg child described in the amoxicillin scenario, what is the total daily dose in mg?

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Study for the Foundation Year Pharmacy – Clinical Practice Test. Prepare with detailed questions, step-by-step explanations, and test format insights. Enhance your readiness and confidence!

Multiple Choice

For the 20 kg child described in the amoxicillin scenario, what is the total daily dose in mg?

Explanation:
The key idea is to convert weight-based dosing into a total daily amount. If the regimen is 60 mg of amoxicillin per kilogram per day, for a child who weighs 20 kg you multiply: 60 mg/kg/day × 20 kg = 1200 mg per day. Another way to see it is per-dose: 60 mg/kg/day split into three doses equals 20 mg/kg per dose. For this child, that’s 20 mg/kg × 20 kg = 400 mg per dose, given three times daily, which also totals 1200 mg/day. If using a suspension concentration like 400 mg per 5 mL, that would be 5 mL per dose, three times daily, giving 1200 mg/day.

The key idea is to convert weight-based dosing into a total daily amount. If the regimen is 60 mg of amoxicillin per kilogram per day, for a child who weighs 20 kg you multiply: 60 mg/kg/day × 20 kg = 1200 mg per day. Another way to see it is per-dose: 60 mg/kg/day split into three doses equals 20 mg/kg per dose. For this child, that’s 20 mg/kg × 20 kg = 400 mg per dose, given three times daily, which also totals 1200 mg/day. If using a suspension concentration like 400 mg per 5 mL, that would be 5 mL per dose, three times daily, giving 1200 mg/day.

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