Final answer:
On Thursday, the patient should take 1.5 tablets of Coumadin (Warfarin) to achieve the prescribed dose of 7.5mg, using the 5mg scored tablets provided by the pharmacy.
Step-by-step explanation:
The patient is prescribed Coumadin (Warfarin) with varying doses depending on the day of the week: 5mg on Monday, Wednesday, and Friday; and 7.5mg on Sunday, Tuesday, Thursday, and Saturday. Considering the pharmacy dispensed 5mg scored tablets, the patient needs to take the correct dose according to the day. On Thursday, the prescribed dose is 7.5mg.
To achieve this dose using 5mg tablets, the patient needs to take one full tablet and a half of another tablet. Since the tablets are scored, they can be split accurately. Therefore, on Thursday, the patient should take 1.5 tablets of Coumadin (Warfarin).