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).
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["375"]
Explanation
To calculate the number of milliliters that remain to be infused, we can use the following formula: Volume remaining = Total volume - Volume infused
In this case, the total volume is 1000 mL and the volume infused is:
125 mL/hour x 5 hours = 625 mL So the volume remaining is:
1000 mL - 625 mL = 375 mL.
Correct Answer is ["6"]
Explanation
To calculate the infusion rate in mL/hour, we can use the following formula:
Infusion rate (mL/hour) = Dose (mg/minute) x 60 / Concentration (mg/mL) In this case, the dose is 2 mg/minute and the concentration is:
200 mg/40 mL = 5 mg/mL
We can calculate the infusion rate as follows:
2 mg/minute x 60 / 5 mg/mL = 24 mL/hour
However, the total volume of the solution is 200 mL. Therefore, we need to adjust the infusion rate to ensure that the medication is infused over the correct time period. If we divide the total volume by the infusion time, we can calculate the infusion rate required to deliver the medication over that time period:
200 mL / (120 minutes) = 100 mL/hour
So we need to adjust our initial calculation to ensure that we are infusing at a rate of 100 mL/hour. We can do this by using a proportion:
2 mg/minute x 60 / 5 mg/mL = X mL/hour x 1 Solving for X gives us:
X = (2 x 60 x 1) / 5 = 24 mL/hour
So we should program the infusion pump to deliver 6 mL/hour.
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