Question

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

Answer 1

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

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| | | |

then you add how it is supplied:

0.5g | 1 capsule | | | capsule

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| 250mg | | |

Now you need to convert g to mg:

0.5g | 1 capsule | 1000mg | | capsule

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| 250mg | 1g | |

cross off and eliminate which leaves you with:

0.5g | 1 capsule | 1000mg | 500 | 2 capsule

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| 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:

Answer 2

Answer: There should be 0.5 mg in each dose.

Step-by-step explanation:

Since we have given that

Quantity of Cephalexin has been ordered for an adult patient in the next 24 hours = 3 grams

We need to divide it into 6 equally spaced doses.

So, Quantity of each dose would be

$\dfrac{3}{6}\\\\=\dfrac{1}{2}\\\\=0.5\ mg$

Hence, there should be 0.5 mg in each dose.