Question

a nurse is preparing to administer cephalexin 0.25 g po every 6 hr. available is cephalexin 500 mg tablets. how many tablets should the nurse administer per dose? (round the answer to the nearest tenth. use a leading zero if it applies. do not use a trailing zero.) tablet(s)

Explanation:

Step1: Convert grams to milligrams

Since 1 g = 1000 mg, then 0.25 g is $0.25\times1000 = 250$ mg.

Step2: Calculate number of tablets

Let $n$ be the number of tablets. We know that each tablet is 500 mg and the required dose is 250 mg. So $n=\frac{250}{500}=0.5$.

Answer:

0.5