1. The prescriber orders captopril 50 mg orally. Available: captopril 25 mg tablets. How many tablets will you give? Tablets are scored and may be halved; give the answer to the nearest half tablet.
- 2 tablets
- 0.5 tablets
- 20 tablets
- 2.5 tablets
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A. 2 tablets
Desired ÷ have = 50 mg ÷ 25 mg = 2 tablets. Inverting the ratio (have ÷ desired) or slipping a decimal place gives the wrong distractors. Practice calculation only: always follow your local protocol and prescriber's order.