The healthcare provider prescribes amrinone 55 mg via intravenous (IV) bolus to be given over 2 minutes. The available vial is labeled, "Amrinone 100 mg/25 mL." How many mL should the nurse administer per minute?
(Enter numerical value only. If rounding is required, round to the nearest hundredth.)
The Correct Answer is ["6.88"]
To calculate the volume of amrinone solution, we need to use the formula:
Volume (mL) = Dose (mg) x Dilution factor (mL/mg)
The dilution factor is the ratio of the volume of the vial to the amount of amrinone in the vial. In this case, it is 25 mL / 100 mg.
Plugging in the given values, we get:
Volume (mL) = 55 mg x 25 mL / 100 mg
Simplifying, we get:
Volume (mL) = 13.75 mL
To calculate the rate of administration, we need to divide the volume by the time. In this case, it is 2 minutes.
Plugging in the given values, we get:
Rate (mL/min) = 13.75 mL / 2 min
Simplifying, we get:
Rate (mL/min) = 6.875 mL/min
Rounding to the nearest hundredth, we get:
Rate (mL/min) = 6.88 mL/min
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["30"]
Explanation
To calculate the infusion rate, we need to use the formula:
Infusion rate (mL/h) = Dose (mg/h) x Volume (mL) / Concentration (mg)
Plugging in the given values, we get:
Infusion rate (mL/h) = 3 mg/h x 500 mL / 50 mg
Simplifying, we get:
Infusion rate (mL/h) = 30 mL/h
Correct Answer is ["1.3"]
Explanation
To calculate the volume of filgrastim solution, we need to use the formula:
Volume (mL) = Dose (mcg) / Concentration (mcg/mL)
First, we need to calculate the dose by multiplying the prescribed rate by the weight in kilograms. To convert the weight from pounds to kilograms, we multiply by 0.454. In this case, 176 pounds is equivalent to 79.904 kg.
Plugging in the given values, we get:
Volume (mL) = 5 mcg/kg x 79.904 kg / 300 mcg/mL
Simplifying, we get:
Volume (mL) = 1.331 mL
Rounding to the nearest tenth, we get:
Volume (mL) = 1.3 mL
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