A nurse is preparing to administer ondansetron 0.1 mg/kg IV bolus to a toddler who weighs 32 lb. Available is ondansetron injection 2 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest hundredth. Use a leading zero if it applies. Do not use a trailing zero.)

Calculation: Convert the toddler's weight from pounds (lb) to kilograms (kg) using the conversion factor of 2.2 lb/kg. Patient's weight in kg = 32 lb / 2.2 lb/kg = 14.5454 kg. Calculate the dose in milligrams (mg) for the child. Dose (mg) = Ordered dose (mg/kg) × Patient's weight (kg) = 0.1 mg/kg × 14.5454 kg = 1.45454 mg. Available concentration = 2 mg/mL. Calculate the volume in milliliters (mL) to administer per dose. Volume (mL) = Dose (mg) / Available concentration (mg/mL) = 1.45454 mg / 2 mg/mL = 0.72727 mL. Round the answer to the nearest hundredth. = 0.73 mL.