A nurse is preparing to administer acetaminophen 300 mg. PO every 4 hr PRN headache. Available is acetaminophen liquid 160 mg/5 mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Determine the total dosage: The client is prescribed 300 mg of acetaminophen. Calculate the volume per dose: The acetaminophen liquid contains 160 mg per 5 mL. The nurse needs to administer 300 mg per dose. To find the volume per dose: 160 mg / 5 mL = 300 mg / x mL 160x = 1500 Dividing both sides by 160, we get: x = 9.375 mL Round the answer to the nearest tenth: Rounding 9.375 to the nearest tenth gives us 9.4 mL.