A client receives a prescription for warfarin 2 mg IM daily. The pharmacy delivers a vial labeled, warfarin 5 mg/single-use vial. The instructions read, reconstitute with 2.7 mL of sterile water for injection to yield 2 mg/mL. How many mg should the nurse administer?
(Enter the numerical value only.)
The Correct Answer is ["2"]
Volume (mL) = Dose (mg) / Concentration (mg/mL)
Substituting the values, the nurse gets:
Volume (mL) = 2 mg / 2 mg/mL
Volume (mL) = 1 mL
Therefore, the nurse should administer 1 mL of the reconstituted solution to deliver 2 mg of warfarin to the client.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["83"]
Explanation
- Calculate the total volume of fluid to be infused in mL: 1 liter = 1000 mL - Divide the total volume by the infusion time in minutes: 1000 mL / (12 hours x 60 minutes) = 1.39 mL/min
- Multiply the infusion rate in mL/min by the drop factor in gtt/mL: 1.39 mL/min x 60 gtt/mL = 83.33 gtt/min
- Round the answer to the nearest whole number: 83 gtt/min
Correct Answer is ["100"]
Explanation
Infusion rate (mL/hour) = Volume (mL) / Time (hour)
The nurse plugs in the values and gets:
Infusion rate (mL/hour) = 50 mL / 0.5 hour
Infusion rate (mL/hour) = 100 mL/hour
Therefore, the nurse should program the infusion pump to deliver 100 mL/hour of cefazolin solution to the client.
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