The nurse is preparing diphenhydramine for nausea in a pediatric patient. The physician ordered 6.25 mg/kg intravenous push every six hours. The patient weighs 38 pounds, and the concentration of the medication is 50 mg/mL. How many mL will the nurse administer to the patient? Round to the nearest tenths place.

Step 1 is: Convert the patient's weight from pounds to kilograms. 38 lb ÷ 2.2 kg/lb = 17.2727 kg. Step 2 is: Calculate the total ordered dose in milligrams. 6.25 mg/kg × 17.2727 kg = 107.9544 mg. Step 3 is: Calculate the volume to administer in milliliters using the concentration. 107.9544 mg ÷ (50 mg/mL) = 2.159088 mL. Step 4 is: Round the final answer to the nearest tenths place. 2.2 mL. The calculated answer is 2.2 mL.