Lidocaine is prescribed for IV infusion via pump at 2 milligrams/minute for a client with ventricular tachycardia. The available premixed infusion contains lidocaine 4 mg/mL in D5W. To administer the prescribed dosage, how many mL/hour should the nurse set the infusion pump?
(Enter numerical value only.)
The Correct Answer is ["30"]
To calculate the infusion rate, we need to use the formula:
Infusion rate (mL/h) = Dose (mg/min) x Volume (mL) / Concentration (mg)
Plugging in the given values, we get:
Infusion rate (mL/h) = 2 mg/min x 60 min / 4 mg/mL
Simplifying, we get:
Infusion rate (mL/h) = 30 mL/h
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["6.88"]
Explanation
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
Correct Answer is ["29.964"]
Explanation
To calculate the infusion rate, we need to use the formula:
Infusion rate (mL/h) = Dose (mcg/min) x Weight (kg) x Volume (mL) / Concentration (mcg)
First, we need to convert the weight from pounds to kilograms by multiplying by 0.454. In this case, 165 pounds is equivalent to 74.91 kg.
Plugging in the given values, we get:
Infusion rate (mL/h) = 2 mcg/min x 74.91 kg x 1,000 mL / 50,000 mcg
Simplifying, we get:
Infusion rate (mL/h) = 29.964 mL/h
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