Ibuprofen dosing for children is typically 5-10 mg/kg per dose every 6-8 hours, with a maximum daily dose of 40 mg/kg.

• A. 3-5 mg/kg per dose every 12 hours; max 20 mg/kg/day.
• B. 5-10 mg/kg per dose every 6-8 hours; max 40 mg/kg/day.
• C. 15-20 mg/kg per dose every 4 hours; max 60 mg/kg/day.
• D. 1-2 mg/kg per dose daily.

Answer: (B)

Dosing ibuprofen in children relies on weight-based per-dose amounts, with a sensible interval and a cap on daily exposure to stay safe. The standard pattern is 5-10 mg per kilogram of body weight per dose, given every 6-8 hours as needed, with a maximum of 40 mg/kg over 24 hours. This range provides effective pain relief or fever reduction while limiting the total daily amount to reduce the risk of kidney or stomach-related side effects.

So, the dosing pattern that matches this is the one that uses 5-10 mg/kg per dose every 6-8 hours with a daily maximum of 40 mg/kg. The other patterns either dose too little per administration or extend the interval too long, risking inadequate relief; or they dose too much per administration or too frequently, exceeding the safe daily total.