The nurse is initiating a prescription for 0.9% Normal saline at 45 mL/hour for a child with dehydration. The nurse attaches a volume-control administration set with a microdrip chamber to the bag of solution. How many microdrops/minute should the nurse regulate the infusion? (Enter the numerical value only. If rounding is required, round to the nearest whole number.)
The Correct Answer is ["45"]
Infusion rate in mL/hour = 45 mL/hour
Microdrip drop factor = 60 microdrops/mL
Calculate the infusion rate in microdrops per minute:
Infusion rate (microdrops/minute) = Infusion rate (mL/hour) x Microdrip drop factor (microdrops/mL) / 60 minutes/hour
= 45 mL/hour x 60 microdrops/mL / 60 minutes/hour
= 45 microdrops/minute
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["104"]
Explanation
Total volume to be infused = 260 mL
Infusion time in hours = 2.5 hours
Calculate the infusion rate in mL per hour:
Infusion rate (mL/hour) = Total volume (mL) / Infusion time (hours)
= 260 mL / 2.5 hours
= 104 mL/hour
Correct Answer is ["180"]
Explanation
Convert the client's weight from pounds to kilograms:
Weight (kg) = Weight (pounds) / 2.2 pounds/kg
= 165 pounds / 2.2 pounds/kg
= 75 kg
Calculate the prescribed dose in mcg/minute:
Dose (mcg/minute) = Prescribed dose (mcg/kg/min) x Client's weight (kg)
= 2 mcg/kg/min x 75 kg
= 150 mcg/minute
Calculate the total amount of dobutamine prescribed per hour:
Dose per hour (mcg/hour) = Dose (mcg/minute) x 60 minutes/hour
= 150 mcg/minute x 60 minutes/hour
= 9000 mcg/hour
Convert the total amount of dobutamine in the IV solution to micrograms:
Total dobutamine (mcg) = Total dobutamine (mg) x 1000 mcg/mg
= 50 mg x 1000 mcg/mg
= 50000 mcg
Determine the concentration of the dobutamine solution in mcg/mL:
Concentration (mcg/mL) = Total dobutamine (mcg) / Total volume (mL)
= 50000 mcg / 1000 mL
= 50 mcg/mL
Calculate the infusion rate in mL/hour:
Infusion rate (mL/hour) = Desired dose per hour (mcg/hour) / Concentration (mcg/mL)
= 9000 mcg/hour / 50 mcg/mL
= 180 mL/hour
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