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A nurse is caring for a client who has a new prescription for interferon beta-1a 11 mcg subcutaneous three times weekly. Available is interferon beta-1a injection 22 mcg/0.5 mL. How many mL should the nurse administer per dose? (Round the answer to the nearest hundredth. Use a leading zero if it applies. Do not use a trailing zero.)

Answer and Explanation

The Correct Answer is ["0.25"]

To calculate the dosage of interferon beta-1a for the client, the nurse should use the following formula:

Dose (mL) = Desired dose (mcg) / Available dose (mcg/mL)

Plugging in the values from the prescription and the medication label, we get:

Dose (mL) = 11 mcg / 22 mcg/0.5 mL

Simplifying the fraction, we get:

Dose (mL) = 0.5 / 2

Dividing both sides by 2, we get:

Dose (mL) = 0.25

Therefore, the nurse should administer 0.25 mL of interferon beta-1a per dose.

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Free Nursing Study Resources

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.

Correct Answer is ["2"]

Explanation

To calculate the number of tablets needed to administer promethazine 25 mg PO, the nurse should use the following formula:

(number of tablets) = (desired dose) / (available dose)

Substituting the values given in the question, we get:

(number of tablets) = (25 mg) / (12.5 mg)

Simplifying, we get:

(number of tablets) = 2

Therefore, the nurse should administer 2 tablets of promethazine 12.5 mg to the client.

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Naxlex Comprehensive Predictor Exams

Correct Answer is ["75"]

Explanation

A nurse is preparing to administer promethazine 25 mg PO to a client. Available is promethazine 12.5 mg tablets. How many tablets should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer is ["2"]

Explanation

1A nurse is preparing to administer cetirizine 5 mg PO. Available is cetirizine 2.5 mg/5 mL. How many ml should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

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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?

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