A nurse is preparing to administer acetaminophen 650 mg PO to a client for pain. Available is acetaminophen liquid 160 mg/5 mL. 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.)

Calculation: Identify the prescribed dose and available concentration Ordered Dose: 650 mg Available Concentration: 160 mg/5 mL Calculate the volume to administer Volume to administer = (Ordered Dose ÷ Concentration per 5 mL) × 5 Volume to administer = (650 ÷ 160) × 5 Volume to administer ≈ 4.0625 × 5 Volume to administer ≈ 20.3125 mL Round to the nearest tenth = 20.3 mL