A client is prescribed clarithromycin (Biaxin) 500 mg PO every 6 hours for 10 days. How many grams of the medication will the client take during the full course of the antibiotic?
1. 0.02
2. 0.2
3. 2
4. 20
4
Rationale 1: g = 1 g/1000 mg x 500 mg/6 hrs x 24 hrs/1 day x 10 days/1. Multiply the numerators (1 x 500 x 24 x 10 = 120,000). Multiply the denominators (1000 x 6 x 1 x 1 = 6,000). 120,000/6,000 = 20 grams in 10 days.
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