A nurse is preparing to administer amoxicillin 500 mg PO every 8 hours. The medication is available in a suspension of 250 mg/5 mL. Using dimensional analysis, how many milliliters should the nurse administer for each dose?

Identify the ordered dose and available concentration Ordered Dose: 500 mg Available Concentration: 250 mg/5 mL Set up dimensional analysis (500 mg) × (5 mL ÷ 250 mg) = mL 500 × (5 ÷ 250) = 500 × 0.02 = 10 mL