The healthcare provider prescribes interferon beta-1b 0.0625 mg subcutaneously every other day for a client with multiple sclerosis. The nurse reconstitutes the single-use vial of powder labeled 0.3 mg with 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 ["0.42"]
1. Determine the concentration of the reconstituted solution:
- The vial contains 0.3 mg of interferon beta-1b.
- It's reconstituted with 2 mL of sterile water.
- Concentration: 0.3 mg / 2 mL = 0.15 mg/mL
2. Calculate the volume to administer:
- The prescribed dose is 0.0625 mg.
- Concentration: 0.15 mg/mL
- Volume: (Desired Dose) / (Concentration) = 0.0625 mg / 0.15 mg/mL = 0.416666... mL
3. Round to the nearest hundredth:
- 0.416666... mL rounded to the nearest hundredth is 0.42 mL.
Therefore, the nurse should administer 0.42 mL.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["83"]
Explanation
Total dose: 20 million units ÷ 10 million units/L = 2 L
Volume per hour: 2 L ÷ 24 hours = 0.083 L/hour = 83 mL/hour
Correct Answer is ["42"]
Explanation
Total volume: 500 mL
Time for infusion: 2 hours = 120 minutes
Infusion rate: 500 mL ÷ 120 minutes = 4.17 mL/min
Drops per minute: 4.17 mL/min × 10 gtt/mL = 42 gtt/min
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