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 ["2"]
Explanation
- Divide the prescribed dose by the concentration of the suspension: 10 mg / (5 mg / 5 mL) = 10 mL
- Convert milliliters to teaspoons: 10 mL x 0.2 tsp/mL = 2 tsp
- The client should take 2 teaspoons of loratadine suspension once a day
Correct Answer is ["41210"]
Explanation
- To calculate the number of tablets, divide the prescribed dose by the available dose.
- Prescribed dose: 2 g amoxicillin + 125 mg clavulanate
- Available dose: 1000 mg amoxicillin + 62.5 mg clavulanate
- Number of tablets = (2 g / 1000 mg) + (125 mg / 62.5 mg)
- Number of tablets = 2 + 2
- Number of tablets = 4
- The nurse should administer 4 tablets every 12 hours for 10 days.
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