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.)

Explanation:

Step1: Convert grams to milligrams

Since 1 g = 1000 mg, then 0.25 g = 0.25×1000 = 250 mg.

Step2: Calculate number of tablets

Number of tablets = $\frac{\text{Dose required}}{\text{Dose per tablet}}$. So, number of tablets = $\frac{250\text{ mg}}{500\text{ mg}}= 0.5$.

Answer:

0.5