A nurse is preparing to administer ibuprofen 10 mg/kg PO to a child. The child weighs 55 lb. Available is ibuprofen 100 mg/5 mL solution. 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.)

Step 1 is to convert the child’s weight from pounds to kilograms. 55 lb × 0.4536 kg/lb = 24.948 kg Step 2 is to calculate the total dose of ibuprofen needed. 24.948 kg × 10 mg/kg = 249.48 mg Step 3 is to determine the volume of ibuprofen solution to administer. (249.48 mg ÷ 100 mg) × 5 mL = 12.474 mL Step 4 is to round the answer to the nearest tenth. 12.474 mL ≈ 12.5 mL The nurse should administer 12.5 mL of ibuprofen solution to the child. .