A child with a heart defect has been prescribed a maintenance dose of Lanoxin elixir at 0.07 mg/kg/day, divided into two doses. The child weighs 19 pounds. What is the maximum dose of medication the nurse should administer in each dose?

1. Convert pounds to kilograms: 19 pounds / 2.2 kg/pound = 8.64 kg (approximately). 2. Calculate the total daily dose: 0.07 mg/kg/day * 8.64 kg = 0.6048 mg/day. 3. Divide the daily dose into two doses: 0.6048 mg/day / 2 doses = 0.3024 mg/dose. 4. Round the dose: Since the question asks for the maximum dose, and typical digoxin dosing is to the hundredths, round to 0.30 mg Therefore, the maximum dose of medication the nurse should administer in each dose is 0.30 mg.