Which of the following is an appropriate ibuprofen dose for a 9-year-old patient weighing 49 lb? Hint: Children's ibuprofen dose-5-10 mg/kg every 6-8 hours

A. 200 mg every 6–8 hours: The child weighs 49 lb, which is approximately 22.3 kg (49 ÷ 2.2). Using the recommended pediatric ibuprofen dose of 5–10 mg/kg, the dose range is 111–223 mg per dose. A 200 mg dose falls within this safe and effective range, making it appropriate for the child. B. 250 mg every 6–8 hours: This dose exceeds the upper limit of the recommended 5–10 mg/kg range for a 22.3 kg child. Administering 250 mg could increase the risk of adverse effects such as gastrointestinal irritation or kidney stress. C. 100 mg every 6–8 hours: This dose is below the minimum recommended dose (111 mg) for a 22.3 kg child, which may result in subtherapeutic effects and inadequate pain or fever control. D. 75 mg every 6–8 hours: This dose is significantly lower than the recommended range and is unlikely to provide effective symptom relief. Using such a low dose may require more frequent dosing, increasing the risk of dosing errors.