A client retums from the post anesthesia care unit (PACU) with a bag of intravenous (IV) fluids that has 630 mL remaining in the 1,000 mL bag. The prescription reads, "Continue the present IV over the next 7 hours." The IV administration set delivers 10 gtt/mL. The nurse should regulate the infusion to deliver how many drops/minute to accomplish the new prescription? (Enter numeric value only).
The Correct Answer is ["15"]
Here's what we know:
Volume remaining in the bag: 630 mL
Total volume to be infused (remaining volume): 630 mL (since we're using the remaining volume)
Infusion time: 7 hours
Drop factor (delivery rate per mL): 10 gtt/mL
We need to find:
Infusion rate (gtt/min)
Steps to solve:
Convert hours to minutes:
Infusion time (hours) = 7
Conversion factor: 1 hour = 60 minutes
Infusion time (minutes) = 7 hours x 60 minutes/hour = 420 minutes
Calculate the required infusion rate (gtt/min):
Total volume to be infused (mL) = 630 mL
Drop factor (gtt/mL) = 10 gtt/mL
Infusion time (minutes) = 420 minutes
Infusion rate (gtt/min) = (Total volume (mL) / Infusion time (minutes)) x Drop factor (gtt/mL)
Infusion rate (gtt/min) = (630 mL / 420 minutes) x 10 gtt/mL
Infusion rate (gtt/min) = 15 gtt/min (rounded to the nearest whole number)
Therefore, the nurse should regulate the infusion to deliver approximately 15 drops/minute.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["18"]
Explanation
Here's how to calculate the volume (mL/hour) the nurse should program the infusion pump to deliver heparin:
1. We know:
Heparin dose rate: 1,400 units/hour (given by healthcare provider)
Heparin concentration in the IV bag: 20,000 units per 250 mL (given on the label)
2. We need to find:
Volume delivery rate (mL/hour)
3. Calculation:
To find the volume rate, we can divide the heparin dose rate (units/hour) by the heparin concentration (units/mL)
Volume rate (mL/hour) = Heparin dose rate (units/hour) / Heparin concentration (units/mL)
Plug in the values:
Volume rate (mL/hour) = 1,400 units/hour / (20,000 units / 250 mL)
Important note: We can rearrange the fraction with the concentration term because we are dividing by units/mL, which is equivalent to multiplying by mL/units. So, effectively, we are multiplying by the reciprocal of the concentration.
Volume rate (mL/hour) = 1,400 units/hour x (250 mL / 20,000 units)
Volume rate (mL/hour) = 17.5 mL/hour (round to nearest whole number)
Therefore, the nurse should program the infusion pump to deliver 18 mL/hour.
Correct Answer is ["0.29"]
Explanation
Here's how to calculate the volume (mL) of epoetin alfa the nurse should administer for one dose:
1. Convert client weight to kilograms (kg):
Weight (kg) = Weight (pounds) / 2.205
Weight (kg) = 126 pounds / 2.205
Weight (kg) = 57.14 kg (round to two decimal places for better accuracy)
2. Calculate the dose per administration based on weight and prescribed dose:
Dose per administration (units) = Prescribed dose (units/kg) x Weight (kg)
Dose per administration (units) = 50 units/kg x 57.14 kg
Dose per administration (units) = 2857 units (round to nearest whole number)
3. Calculate the volume (mL) to administer for one dose:
Volume (mL) = Dose per administration (units) / Concentration (units/mL)
Concentration (units/mL) = 10,000 units/mL (given on the vial label)
Volume (mL) = 2857 units / 10,000 units/mL
Volume (mL) = 0.2857 mL (round to nearest hundredth as requested)
Therefore, the nurse should administer approximately 0.29 mL of epoetin alfa for one dose.
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