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A nurse is preparing to administer mannitol [tex]0.2 \text{ g/kg}[/tex] IV bolus over 5 minutes as a test dose to a client who has severe oliguria. The client weighs 198 lb. What is the amount in grams the nurse should administer?

A. 1.8 g
B. 4.4 g
C. 18 g
D. 44 g

Answer :

Final answer:

To find out how much mannitol the nurse should administer, we convert the patient's weight from pounds to kilograms. We then multiply this weight by the given dosage of 0.2g/kg to get an answer of 18g (Option 3).

Explanation:

The subject of this question is dosage calculation in the healthcare field, specifically in nursing, which makes use of the mathematical concept of proportions. In the scenario presented, a nurse is preparing to administer mannitol in the medication dosage of 0.2g/kg as a bolus over 5 minutes to a patient weighing 198 lbs.

First, we need to convert the patient’s weight from pounds to kilograms since the dosage is given in grams per kilogram. We know that 1 kilogram is approximately 2.2 lbs. So, we divide 198 lbs by 2.2 to find the weight in kilograms.

198 lb /2.2 = 90 kg

Next, we multiply this weight by the dosage required of 0.2 grams per kilogram.

90 kg x 0.2g/kg = 18g

Therefore, the nurse should administer 18 grams of mannitol.

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