A nurse is preparing to administer acetaminophen 10 mg/kg/dose to a child who weighs 28 lb. The amount available is acetaminophen 120 mg/5 mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Convert the child's weight from pounds (lb) to kilograms (kg). Weight in kg = 28 lb / 2.2 lb/kg = 12.727 kg Calculate the total desired dose in milligrams (mg). Desired dose (mg) = Desired dose (mg/kg/dose) × Weight (kg) = 10 mg/kg/dose × 12.727 kg = 127.27 mg Available concentration of the acetaminophen oral solution = 120 mg / 5 mL. Calculate the volume in milliliters (mL) to administer. Volume (mL) = Desired dose (mg) / (Available concentration (mg) / Available volume (mL)) = 127.27 mg / (120 mg / 5 mL) = 127.27 mg × (5 mL / 120 mg) = (127.27 × 5) / 120 mL = 636.35 / 120 mL = 5.302 mL Round the answer to the nearest tenth. = 5.3 mL.