Question

problem 7
order: digoxin (lanoxin) 0.5 mg by mouth daily
supply: lanoxin 250 mcg tablets

Explanation:

Step1: Convert units

First, convert 0.5 mg to mcg. Since 1 mg = 1000 mcg, then 0.5 mg = 0.5×1000 = 500 mcg.

Step2: Calculate number of tablets

Divide the ordered dose (in mcg) by the strength of each tablet (in mcg). So, the number of tablets $n=\frac{500}{250}=2$.

Answer:

2