A client receives a prescription for oxytocin 2 milliunits/min IV for labor augmentation. The IV bag contains oxytocin 20 units in 1 liter of lactated Ringer's. How many mL/hour should the nurse program the infusion pump to deliver? (Enter numerical value only.)
The Correct Answer is ["6"]
Calculation:
Determine the concentration of oxytocin in the IV solution in milliunits/mL:
Total units of oxytocin = 20 units
Convert units to milliunits:
20 units x 1000 milliunits/unit = 20000 milliunits
Total volume of solution = 1 liter = 1000 mL
Concentration = Total milliunits / Total volume
= 20000 milliunits / 1000 mL
= 20 milliunits/mL
Calculate the desired dose per hour in milliunits:
Desired dose per minute = 2 milliunits/min
Desired dose per hour = 2 milliunits/min x 60 minutes/hour
= 120 milliunits/hour
Calculate the infusion rate in mL/hour:
Infusion rate (mL/hour) = Desired dose per hour (milliunits/hour) / Concentration (milliunits/mL)
= 120 milliunits/hour / 20 milliunits/mL
= 6 mL/hour
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["120"]
Explanation
Calculation:
Calculate the desired dose per hour in milligrams:
Desired dose per minute = 2 mg/minute
Desired dose per hour = 2 mg/minute x 60 minutes/hour
= 120 mg/hour
Determine the concentration of labetalol HCl in the IV solution:
Total amount of labetalol HCl = 200 mg
Total volume of solution = 200 mL
Concentration = Total amount / Total volume
= 200 mg / 200 mL
= 1 mg/mL
Calculate the infusion rate in mL/hour:
Infusion rate (mL/hour) = Desired dose per hour (mg/hour) / Concentration (mg/mL)
= 120 mg/hour / 1 mg/mL
= 120 mL/hour
Correct Answer is ["1.9"]
Explanation
Calculation:
Calculate the prescribed dose in micrograms:
Dose (mcg) = Prescribed dose (mcg/kg) x Client's weight (kg)
= 50 mcg/kg x 74 kg
= 3700 mcg
Convert the dose from micrograms to milligrams:
Dose (mg) = Dose (mcg) / 1000 mcg/mg
= 3700 mcg / 1000 mcg/mg
= 3.7 mg
Calculate the volume to administer in mL:
Volume to administer (mL) = Desired dose (mg) / Available concentration (mg/mL)
= 3.7 mg / 2 mg/mL
= 1.85 mL
Round to the nearest tenth:
Rounded volume = 1.9 mL
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