Dosage Calculation NCLEX RN Questions Nursing Practice Question
The nurse is preparing to administer penicillin V potassium to a child with pneumonia. The child weighs 18.5 kg (40.7 lbs). The prescription is for 50 mg/kg/day PO in divided doses every six hours. How many milligrams should the child receive with each dose? Fill in the blank. Round your answer to the nearest whole number.
Correct Answer: 231 mg
Rationale: Calculate daily dose: 50 mg/kg × 18.5 kg = 925 mg. Four doses per day: 925 mg ÷ 4 = 231.25 mg, rounded to 231 mg.