A nurse is preparing to administer cefazolin 500 mg IM to a client. Available is cefazolin powder 500 mg vial. After reconstitution, the concentration available is cefazolin 330 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["1.5"]
The nurse should administer 1.5 mL of cefazolin solution.
Here's the calculation:
Desired dose: 500 mg
Concentration after reconstitution: 330 mg/mL
We can find the volume to administer by dividing the desired dose by the concentration and rounding to the nearest tenth:
Volume to administer (rounded to nearest tenth) = Dose / Concentration
= 500 mg / 330 mg/mL
= 1.5 mL (rounded to nearest tenth)
Therefore, the nurse should administer 1.5 mL of the reconstituted cefazolin solution.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["1.5"]
Explanation
The nurse should administer 1.5 mL of cefazolin solution.
Here's the calculation:
Desired dose: 500 mg
Concentration after reconstitution: 330 mg/mL
We can find the volume to administer by dividing the desired dose by the concentration and rounding to the nearest tenth:
Volume to administer (rounded to nearest tenth) = Dose / Concentration
= 500 mg / 330 mg/mL
= 1.5 mL (rounded to nearest tenth)
Therefore, the nurse should administer 1.5 mL of the reconstituted cefazolin solution.
Correct Answer is ["0.4"]
Explanation
The nurse should administer 0.4 mL of morphine.
Here's the calculation:
Desired dose: 4 mg
Concentration of available morphine: 10 mg/mL
We can find the volume to administer by dividing the desired dose by the concentration and rounding to one decimal place:
Volume to administer (rounded to one decimal) = Dose / Concentration
= 4 mg / (10 mg/mL)
= 0.4 mL
Therefore, the nurse should administer 0.4 mL of the morphine solution.
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