A nurse is preparing to administer diclofenac sodium 200 mg PO daily in equally divided doses every 6 hr. How many mg 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.)

Here's the correct breakdown: Total daily dose: 200 mg Frequency of administration: Every 6 hours (equally divided doses) We divided the total daily dose by the number of doses per day to find the dose per administration: Dose per administration = Total daily dose / Number of doses per day = 200 mg / 4 doses/day = 50 mg/dose