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.)

Step 1: Convert the toddler's weight from pounds to kilograms. The conversion factor is 1 kg = 2.2 lb. Weight in kg= 32/2.2≈14.55 kg Step 2: Calculate the required dose of ondansetron in mg. Total dose of ondansetron needed: Dose in mg=0.1 mg/kg×14.55 kg=1.455 mg Step 3: Determine the volume of ondansetron to administer. To determine how many mL the nurse should administer, we use the formula: Volume (mL)=Dose in mg/Concentration in mg/mL=1.455 mg/2 mg/mL=0.7275 mL Step 4: Round the answer. Rounding off 0.7275 mL gives 0.73 mL.