A nurse is preparing to administer cefazolin 1 g IM. The nurse reconstitutes a 1 g vial of cefazolin with sterile water to yield a final concentration of 225 mg/mL. How many ml should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing
The Correct Answer is ["4"]
Calculations:
Desired dose = 1g = 1000 mg
Concentration = 225 mg/mL
Volume = Desired dose / Concentration = 1000 mg / 225 mg/mL = 4.44 mL
Rounded to the nearest whole number = 4 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["4"]
Explanation
The nurse should administer 4 mL of levothyroxine.
Calculations:
Convert 0.4 mg to mcg: 0.4 mg x 1000 mcg/mg = 400 mcg
Desired dose = 400 mcg
Concentration = 100 mcg/mL
Volume = Desired dose / Concentration = 400 mcg / 100 mcg/mL = 4 mL
Correct Answer is ["300"]
Explanation
Understanding the problem
We need to administer 150 mL of the medication over 30 minutes.
We need to determine the flow rate in mL/hr.
Step-by-step calculation
Convert minutes to hours:
30 minutes = 0.5 hours
Calculate the flow rate:
Flow rate (mL/hr) = Total volume (mL) / Infusion time (hours) = 150 mL / 0.5 hours = 300 mL/hr
Therefore, the nurse should set the IV pump to deliver 300 mL/hr.
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