A nurse is preparing to administer amoxicillin 350 mg PO. Available is amoxicillin 250 mg/5 mL. How many mL should the nurse administer? (Round to the nearest whole number.)

The correct answer is 7 mL. Step 1 is to calculate the concentration of amoxicillin in mg/mL: 250 mg ÷ 5 mL = 50 mg/mL. Step 2 is to use the calculated concentration to find the volume: Volume (mL) = 350 mg ÷ 50 mg/mL = 7 mL.