A physician ordered 600 mg of ibuprofen every 8 hours, for 5 days. There are 200 mg tablets available in the pharmacy. How many tablets should be dispensed?
10
15
30
45
45
Rationale: 45 tablets should be dispensed. To calculate: 3 tablets of 200 mg every 8 hours for 5 days. Therefore, 3 tablets of 200 mg = the 600 mg dose, so 3 tablets x 3 times per day (which is every 8 hours) = 9 tablets. Multiply 9 x 5 days = 45 tablets.
Health Professions
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