The healthcare provider prescribes interferon beta-1b 0.1875 mg every other day for a client with multiple sclerosis. The nurse reconstitutes the single-use vial of powder labeled 0.3 mg with 1.2 mL of sterile water. How many ml should the nurse administer to the client?
(Enter the numerical value only. If rounding is required round to the nearest hundredth)
The Correct Answer is ["0.75"]
The healthcare provider prescribes interferon beta-1b 0.1875 mg every other day for a client with multiple sclerosis.
The nurse reconstitutes the single-use vial of powder labeled 0.3 mg with 1.2 mL of sterile water, so the concentration of interferon beta-1b in the solution is 0.25 mg/mL (0.3 mg / 1.2 mL).
Since the healthcare provider prescribes 0.1875 mg of interferon beta-1b, the nurse should administer 0.75 mL of medication (0.1875 mg / 0.25 mg/mL).

Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["40"]
Explanation
A client with heart failure (HF) is receiving an IV infusion of 0.9% normal saline 250 mL at a keep-vein-open (KVO) rate of 40 mL/hour.
The IV tubing has a minidrip chamber that delivers 60 microdrops/mL.
To calculate the infusion rate in microdrops/minute, we need to multiply the infusion rate in mL/hour (40 mL/hour) by the number of microdrops/mL (60 microdrops/mL) and divide by the number of minutes in an hour (60 minutes/hour).
The nurse should regulate the microdrop gravity IV infusion to deliver 40 microdrops/minute (40 mL/hour * 60 microdrops/mL / 60 minutes/hour).

Correct Answer is ["4"]
Explanation
The client is receiving a prescription for penicillin 1.2 million units IM.
The available vial is labeled "600,000 units/2 mL", so the concentration of penicillin in the solution is 300,000 units/mL (600,000 units / 2 mL).
Since the healthcare provider prescribes 1.2 million units of penicillin, the nurse should administer 4 mL of medication (1.2 million units / 300,000 units/mL).

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