Q:

Cephalexin has been ordered for an adult patient; 3 grams are to be given the next 24 hours, divided into 6 equally spaced doses. How many milligrams should be in each dose

Accepted Solution

A:
Answer:I assume you mean 0.5g. This decimal is very important so make sure you are accurate in providing decimals. Ok so here goes the problem. The order reads:give 0.5g you place this in the problem first: 0.5g | | | | capsule ------------------------------------------------------- | | | | then you add how it is supplied: 0.5g | 1 capsule | | | capsule ------------------------------------------------------- | 250mg | | | Now you need to convert g to mg: 0.5g | 1 capsule | 1000mg | | capsule ------------------------------------------------------- | 250mg | 1g | | cross off and eliminate which leaves you with: 0.5g | 1 capsule | 1000mg | 500 | 2 capsule ------------------------------------------------------- | 250mg | 1g | 250 | This eliminates grams, and milligrams and results in capsules. So multiply across and divide. 500 divided by 250 = 2 so 2 capsules (Sorry I couldn't do overstrikes but I hope you can visualize the crossing off.)Step-by-step explanation: