A nurse is preparing to administer morphine 0.2 mg/kg IM to a child who weighs 77 lb. Available is morphine injection 10 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 ["0.7"]

To calculate the dosage of morphine for a child, the nurse needs to convert the child's weight from pounds to kilograms and then multiply it by the prescribed dose per kilogram. The nurse also needs to divide the resulting amount by the concentration of the morphine injection to get the volume to be administered. The formula is:

Volume (mL) = (Weight (kg) x Dose (mg/kg)) / Concentration (mg/mL)

In this case, the child weighs 77 lb, which is equivalent to 35 kg (77 / 2.2 = 35). The prescribed dose is 0.2 mg/kg and the concentration of the morphine injection is 10 mg/mL. Therefore, the volume to be administered is:

Volume (mL) = (35 x 0.2) / 10

Volume (mL) = 0.7

The nurse should round the answer to the nearest tenth, which is 0.7 mL.

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Correct Answer is C

Explanation

A. OZ: This abbreviation stands for ounces, which is a unit of volume commonly used to measure liquids.

B. "Lb" stands for pounds, which is another imperial unit of weight, not a metric unit.

C. "Mcg" stands for microgram, which is a metric unit of weight. It is commonly used in the measurement of small amounts of medications or substances..

D. ML: This abbreviation stands for milliliters, which is a unit of volume commonly used to measure liquids. One milliliter is equivalent to one cubic centimeter.

Correct Answer is ["75"]

Explanation

The medication label for amoxicillin powder provides the instructions for reconstituting the oral suspension. The nurse should follow these steps:

- Tap the bottle until all the powder is loose.

- Add about 17 mL of water to the bottle (one-third of the total amount of 51 mL).

- Shake the bottle well to mix the powder and water.

- Add the remaining 34 mL of water to the bottle and shake again.

- Check that the final volume of the oral suspension is 75 mL.

The nurse should expect the bottle to contain 75 mL of oral suspension after reconstitution.

This is because each 5 mL of oral suspension contains 400 mg of amoxicillin, and the net contents of the powder are equivalent to 6 grams (6000 mg) of amoxicillin.

Therefore, 6000 mg / 400 mg = 15, which means that 15 doses of 5 mL each are needed to use up all the powder. Multiplying 15 by 5 mL gives 75 mL, which is the final volume of the oral suspension.

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A nurse is preparing to administer morphine 0.2 mg/kg IM to a child who weighs 77 lb. Available is morphine injection 10 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 teaching a newly hired nurse about documentation in the medical record. Which of the following abbreviations should the newly hired nurse identify as a metric unit of weight?

Correct Answer is C

Explanation

Correct Answer is ["75"]

Explanation

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A nurse is preparing to administer morphine 0.2 mg/kg IM to a child who weighs 77 lb. Available is morphine injection 10 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.)