A nurse is preparing to administer nifedipine 20 mg PO three times a day. Available is nifedipine 10 mg capsules. How many capsules should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Identify the given information: Dose of nifedipine: 20 mg Concentration of nifedipine capsules: 10 mg/capsule Calculate the number of capsules to be administered: Number of capsules = Dose (mg) / Concentration (mg/capsule) Substitute the values: Number of capsules = 20 mg / 10 mg/capsule Number of capsules = 2 capsules