A nurse is preparing to administer aspirin 650 mg PO every 12 hr. The amount available is aspirin 325 mg tablets. How many tablets should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Step 1: Determine the total dose required every 12 hours. Result: 650 mg Step 2: Determine the dose per tablet. Result: 325 mg/tablet Step 3: Calculate the number of tablets required by dividing the total dose by the dose per tablet. Calculation: 650 mg ÷ 325 mg/tablet Result: 2 tablets