Answer :
C. 1 tablet, four times daily. Each 0.5 gram tablet contains 500 mg, which can be split into two 250 mg doses, matching the prescribed dose.
To determine the correct number of tablets to administer, we first convert the available tablet dosage to the same unit as the prescribed dose:
Sulfisoxazole tablets available: 0.5 grams (500 mg) per tablet.
Prescribed dose: 250 mg.
Each available tablet can be split into half because they are scored. Thus, each half-tablet will contain 250 mg (500 mg / 2).
This is because each available tablet (500 mg) can be divided into two half-tablets, each containing 250 mg, which matches the prescribed dose.
- Each 0.5-gram tablet equals 500 mg.
- 250 mg is required per dose to be given four times a day (QID).
- One 0.5-gram tablet can be split into two 250-mg doses.
- Thus, you need one 500 mg tablet for each 250 mg dose.
