A nurse is preparing to administer diphenhydramine 1.25 mg/kg IM to a child who weighs 68 lb. Available is diphenhydramine injection 50 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Answer and Explanation

The Correct Answer is ["0.8"]

First, the child's weight needs to be converted from pounds to kilograms. There are approximately 2.2 pounds in 1 kilogram.

68 lb ÷ 2.2 = 30.9 kg

Next, the dose of diphenhydramine in mg can be calculated by multiplying the child's weight in kg by the dose in mg/kg.

1.25 mg/kg × 30.9 kg = 38.6 mg

Finally, to calculate the number of mL the nurse should administer, you need to divide the dose of diphenhydramine in mg by the concentration of the diphenhydramine injection in mg/mL.

38.6 mg ÷ 50 mg/mL = 0.8 mL

So, the nurse should administer 0.8 mL of diphenhydramine injection.

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Correct Answer is ["50"]

Explanation

If the daily dose is 200 mg and it is to be given in equally divided doses every 6 hours, then we need to

calculate the amount per dose:

200 mg ÷ 4 doses = 50 mg per dose

Correct Answer is ["100"]

Explanation

First, we need to determine how many milligrams of vancomycin are in each milliliter of the reconstituted solution:

1 g = 1,000 mg

If we reconstitute 1 g of vancomycin powder for injection in enough diluent to make a final volume of 200 mL, the concentration will be:

1,000 mg ÷ 200 mL = 5 mg/mL

Now, we can calculate how many milliliters of the reconstituted solution the nurse should administer to deliver 500 mg of vancomycin:

500 mg ÷ 5 mg/mL = 100 mL

Therefore, the nurse should administer 100 mL of the reconstituted vancomycin solution via intermitent IV

bolus.

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A nurse is preparing to administer diphenhydramine 1.25 mg/kg IM to a child who weighs 68 lb. Available is diphenhydramine injection 50 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is preparing to administer diclofenac sodium 200 mg PO daily in equally divided doses every 6 hours. How many mg should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer is ["50"]

Explanation

Correct Answer is ["100"]

Explanation

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