A nurse has to administer 17.1 mg of ondansetron to a client before chemotherapy. The 10 mL vial contains 3 mg/mL.
How much solution should the nurse withdraw from the vial?
1.71 mL
5.7 mL
10 mL
17.1 mL
The Correct Answer is B
The amount of solution the nurse should withdraw from the vial can be calculated using the following formula:
Amount of solution = Amount of medication needed / Concentration of medication in the solution.
In this case, the amount of medication needed is 17.1 mg and the concentration of medication in the solution is 3 mg/mL. Substituting these values into the formula, we get:
Amount of solution = 17.1 mg / 3 mg/mL = 5.7 mL
Therefore, the answer is B. The nurse should withdraw 5.7 mL of solution from the vial.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The Joint Commission has a list of approved medical abbreviations that should be used to prevent miscommunication and errors in healthcare settings.
Out of the abbreviations listed in the
Question , only "IV" (for intravenous) is on the Joint Commission's list of approved abbreviations.
"IU" (for international unit) is not on the list because it can be misinterpreted as "IV" (intravenous) or "10" (the Roman numeral for 10).
"QD" (for once daily) is also not on the list because it can be misinterpreted as "QID" (four times daily) or "QOD" (every other day).
"QOD" (for every other day) is also not on the list because it can be misinterpreted as "QD" (once daily) or "QID" (four times daily).
Therefore, the correct answer is A. IV.
Correct Answer is D
Explanation
First, we need to calculate the total dose of esmolol required per minute: Total dose = Weight x Dose x 60 minutes
Total dose = 65 kg x 200 mcg/kg/min x 60 minutes Total dose = 780,000 mcg/min
Next, we need to convert the dose to milligrams (mg):
780,000 mcg/min = 780 mg/min
The concentration of the esmolol solution is 2,500 mg in 250 mL or 10 mg/mL. To deliver 780 mg/min at a concentration of 10 mg/mL, we need to infuse: Infusion rate = Total dose / Concentration
Infusion rate = 780 mg/min / 10 mg/mL Infusion rate = 78 mL/min
Rounding to the nearest whole number, the answer is D. 78 mL/hr.
Therefore, the nurse should calculate an infusion rate of 78 mL/hr to deliver the required dose of esmolol to the patient.
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