At 1530 the nurse observes 550 mL of IV fluid is yet to be infused for a client receiving 1,000 mL dextrose 0.5% and 0.25% sodium chloride at 88 mL/hour. At what time should the nurse calculate the fluid will be infused based on the 24 hour clock?
The Correct Answer is ["2145"]
The nurse observes that there are 550 mL of IV fluid yet to be infused and
the current rate of infusion is 88 mL/hour.
Therefore, the time it will take to infuse the remaining fluid is:
88mL/hour550mL≈6.25hours
This is approximately 6 hours and 15 minutes (since 0.25 hour is 15 minutes).
The current time is 1530 (or 3:30 PM). Adding 6 hours and 15 minutes to this time, the fluid will be infused by approximately:
1530 + 0615 = 2145
So, the nurse should calculate that the fluid will be infused by 2145 (or 9:45 PM) on the 24-hour clock.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["17"]
Explanation
Here's how to calculate the drip rate (drops/minute) for the ganciclovir infusion:
1. We know:
Ganciclovir dose: 375 mg (given)
Infusion bag volume: 150 mL (given)
Infusion time: 90 minutes (given) = 1.5 hours (convert minutes to hours)
Drip chamber calibration: 10 drops/mL (given)
2. We need to find:
Drip rate (drops/minute)
3. Steps:
Calculate the concentration of ganciclovir in the bag (assuming all medication is in the bag):
Concentration (mg/mL) = Dose (mg) / Volume (mL)
Concentration (mg/mL) = 375 mg / 150 mL
Concentration (mg/mL) = 2.5 mg/mL
Calculate the total volume to infuse (considering the prescribed dose):
We already know the volume of the bag (150 mL), but this might contain more volume than needed to deliver the prescribed dose.
Calculate the volume to infuse based on the dose and concentration:
Volume to infuse (mL) = Dose (mg) / Concentration (mg/mL)
Volume to infuse (mL) = 375 mg / 2.5 mg/mL
Volume to infuse (mL) = 150 mL (This confirms that the full bag volume delivers the prescribed dose)
Calculate the infusion rate (mL/hour):
Infusion rate (mL/hour) = Total volume to infuse (mL) / Infusion time (hours)
Infusion rate (mL/hour) = 150 mL / 1.5 hours
Infusion rate (mL/hour) = 100 mL/hour
Calculate the drip rate (drops/minute):
Drip rate (drops/minute) = Infusion rate (mL/hour) x Drip chamber calibration (drops/mL)
Drip rate (drops/minute) = 100 mL/hour x 10 drops/mL
Drip rate (drops/minute) = 1000 drops/hour (convert to minutes)
Drip rate (drops/minute) = 1000 drops/hour / 60 minutes/hour
Drip rate (drops/minute) = 16.67 drops/minute (round to nearest whole number as requested)
Therefore, the nurse should regulate the gravity infusion at approximately 17 drops/minute.
Correct Answer is ["21"]
Explanation
Here's how to calculate the infusion rate for lactated Ringer's solution:
We know:
Total volume of lactated Ringer's solution: 1 liter (1000 mL) (given)
Infusion duration: 8 hours (given)
IV administration set drip rate: 10 gtt/mL (given)
We need to find:
Infusion rate in gtt/min
Steps:
Calculate the volume that needs to be delivered per hour:
Volume per hour (mL) = Total volume (mL) / Infusion time (hours)
Volume per hour (mL) = 1000 mL / 8 hours
Volume per hour (mL) = 125 mL/hour
Calculate the infusion rate in gtt/min:
Infusion rate (gtt/min) = Volume per hour (mL) x Drip rate (gtt/mL) / 60 minutes/hour (convert hour to minutes)
Infusion rate (gtt/min) = 125 mL/hour x 10 gtt/mL / 60 minutes/hour
Infusion rate (gtt/min) = 20.83 gtt/min (round to nearest whole number)
Therefore, the nurse should regulate the infusion at 21 gtt/min.
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