The healthcare provider prescribes cefazolin 800 mg IM every six hours. The available vial is labeled, "Cefazolin 1 gram," and the instructions for reconstitution state, "For IM use add 2.5 mL sterile water for injection to provide a total volume of 3.0 mL." After reconstitution, the solution contains how many mg/mL? (Enter numeric value only. If rounding is required, round to the nearest whole number.)
The Correct Answer is ["333"]
To find the answer, we can use the following formula:
(mg/mL) = (mg of cefazolin) / (mL of solution)
Substituting the given values, we get:
(mg/mL) = (1000) / (3)
Simplifying, we get:
(mg/mL) = 333.333
(rounded mg/mL) = 333
Therefore, after reconstitution, the solution contains 333 mg/mL of cefazolin.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["270"]
Explanation
To find the answer, we can use the following formula:
(remaining volume) = (initial volume) - (infused volume)
Substituting the given values, we get:
(remaining volume) = (440) - ((85 x 2))
Simplifying, we get:
(remaining volume) = (440) - (170)
(remaining volume) = 270
Therefore, the remaining volume to be infused is 270 mL.
Correct Answer is ["180"]
Explanation
To find the answer, we can use the following steps:
- Convert the client's weight from pounds to kilograms by dividing by 2.2
- Calculate the dosage of dobutamine in mg/hour by multiplying the weight in kg by the rate in mcg/kg/min and by 60
- Divide the dosage of dobutamine in mg/hour by the concentration of dobutamine in the solution in mg/mL
- Round the result to the nearest whole number
Using these steps, we get:
- (weight in kg) = (165) / (2.2) = 75 kg
- (dose in mg/hour) = (2) x (75) x (60) = 9000 mcg/hour
- (dose in mg/hour) = (9000 x 10^-3) = 9 mg/hour
- (volume in mL/hour) = (9) / (50 / 1000) = 180 mL/hour
Therefore, the nurse should set the infusion pump to deliver 180 mL/hour of dobutamine hydrochloride in D5W.
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