A nurse is preparing to administer 1g of cefazolin IM. The nurse reconstitutes a 1g vial of cefazolin with sterile water to yield a final concentration of 330 mg/mL. How many mL should the nurse administer?
The Correct Answer is ["3.03 "]
The nurse should administer 3.03 mL of cefazolin. Here’s the calculation: Step 1: The total dosage required is 1g.
Step 2: Each mL of the reconstituted solution contains 330 mg of cefazolin. Step 3: So, the volume to be administered is 1000 mg ÷ 330 mg/mL = 3.03 mL.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["2.5 "]
Explanation
The nurse should administer 2.5 tablets of prednisone. Here’s the calculation: Step 1: The total dosage required is 50 mg.
Step 2: Each tablet contains 20 mg of prednisone.
Step 3: So, the number of tablets required is 50 mg ÷ 20 mg/tablet = 2.5 tablets.
Correct Answer is C
Explanation
Choice A rationale:
The label states to add 3.5 mL of diluent for reconstitution, not 5 mL. So, choice A is incorrect.
Choice B rationale:
After reconstitution, the vial will contain 1 gram of medication, not 500 mg. So, choice B is incorrect.
Choice C rationale:
The label does state to use the solution within 1 hour of reconstitution. So, choice C is correct.
Choice D rationale:
The label states the medication can be used for IM or IV, not only IM. So, choice D is incorrect.
So, the correct answer is C. Administer the medication within 1 hr of reconstitution.
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