A child who weighs 44 pounds with otitis media receives a prescription for azithromycin 10 mg/kg once, then 10 mg/kg daily for 4 days. The medication is available in a solution containing 200 mg/5mL. How many mL should the nurse administer on the first day of the treatment regimen? (Enter numeric value only.)

Here's how to calculate the volume (mL) of azithromycin the nurse should administer on the first day of treatment: 1. Convert the child's weight from pounds to kilograms: Weight (kg) = Weight (lb) / 2.2 Weight (kg) = 44 lb / 2.2 Weight (kg) = 20 kg (approximately) 2. Calculate the total azithromycin dose for the first day (initial dose): Dose (mg) = Dose (mg/kg) x Weight (kg) Dose (mg) = 10 mg/kg x 20 kg Dose (mg) = 200 mg 3. Determine the volume (mL) to administer considering the medication concentration: Concentration (mg/mL) = 200 mg/5 mL (given from the medication label) Volume to administer (mL) = Dose (mg) / Concentration (mg/mL) Volume to administer (mL) = 200 mg / 200 mg/5 mL Volume to administer (mL) = 5 mL Therefore, the nurse should administer 5 mL of azithromycin on the first day of the treatment regimen.