A dose of 2.1 mg/kg/day (2.1 mg of drug per a kilogram of body weight) of an ant

Question

A dose of 2.1 mg/kg/day (2.1 mg of drug per a kilogram of body weight) of an antibiotic is to be given to a patient that weighs 282 pounds.The antibiotic is sold in 21 mg tablets. How tablets ( round to the nearest whole tablet) should be given to a patient in one day? A dose of 2.1 mg/kg/day (2.1 mg of drug per a kilogram of body weight) of an antibiotic is to be given to a patient that weighs 282 pounds.The antibiotic is sold in 21 mg tablets. How tablets ( round to the nearest whole tablet) should be given to a patient in one day?

Explanation / Answer

Step 1

Determine the medication's mg/kg/day

2.1/mg/kg/day (given)

Step 2

Measure the patient’s body weight.

Given patient’s body weight =282 pounds= 282 /2.2 =128.18kg (1kg=2.2pounds)

Step 3

Multiply the patient’s weight in kilograms by the mg/kg/day amount.

= 128.18 X 2.1mg

=269.178 mg

One tablet=21mg

Therefore the number of tablets required by the patient per day=269.178mg / 21mg = 12.81 = 13 tablets/day

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