A nurse is preparing to administer 0.9% sodium chloride 5 L IV to infuse over 6 hr. The nurse should set the IV pump to deliver how many mL/hr? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["250"]
Calculation:
Convert the total volume to milliliters:
Total volume: 1.5 L
Conversion: 1.5 L × 1000 mL/L = 1500 mL
Determine the total infusion time in hours:
Infusion time: 6 hours
Calculate the IV pump flow rate in mL/hr:
Formula: Flow rate (mL/hr) = Total volume (mL) / Total time (hours)
= 1500 mL / 6 hours
= 250 mL/hr
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["1.5"]
Explanation
Calculation:
Convert the child's weight from pounds (lbs) to kilograms (kg):
Formula: Weight in kg = Weight in lbs / 2.2 lbs/kg
= 66 lbs / 2.2 lbs/kg
= 30 kg
Calculate the total dose of phenytoin needed in milligrams:
Ordered dose: 2.5 mg/kg
Child's weight in kg: 30 kg
Formula: Total dose (mg) = Ordered dose (mg/kg) × Child's weight (kg)
= 2.5 mg/kg × 30 kg
= 75 mg
Determine the concentration of the available phenytoin injection:
Available concentration: 50 mg/mL
Calculate the volume of phenytoin to administer:
Formula: Volume to administer (mL) = Desired dose (mg) / Concentration (mg/mL)
= 75 mg / 50 mg/mL
= 1.5 mL
Correct Answer is ["83"]
Explanation
Calculation:
Determine the total volume to be infused:
Total volume: 250 mL
Determine the total infusion time in minutes:
Infusion time: 30 minutes
Determine the drop factor of the IV tubing:
Drop factor: 10 gtt/mL
Calculate the total number of drops needed:
Formula: Total drops (gtt) = Total volume (mL) × Drop factor (gtt/mL)
= 250 mL × 10 gtt/mL
= 2500 gtt
Calculate the flow rate in drops per minute (gtt/min):
Formula: Flow rate (gtt/min) = Total drops (gtt) / Total time (minutes)
= 2500 gtt / 30 minutes
≈ 83.33 gtt/min
Round the answer to the nearest whole number:
83.33 gtt/min rounded to the nearest whole number is 83 gtt/min.
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