A client is to receive 120 mL of IV fluid over a 2-hour period. The drop factor on the IV tubing is 15 gtt/mL. Calculate the rate at which the nurse should regulate the IV (gtt/min).
The Correct Answer is ["15"]
Convert the infusion time to minutes:
2 hours x 60 minutes/hour = 120 minutes
Calculate the flow rate in mL/min:
120 mL / 120 minutes = 1 mL/min
Use the drop factor to convert mL/min to gtt/min:
1 mL/min x 15 gtt/mL = 15 gtt/min
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["30"]
Explanation
Convert the total volume to milliliters (mL):
The volume is already given in mL: 150 mL
Convert the time to minutes:
1 hour = 60 minutes
Use the drop factor to find the drops per mL:
The drop factor is given as 12 gtt/mL.
Calculate the total drops:
Total drops = Volume (mL) x Drop factor (gtt/mL)
Total drops = 150 mL x 12 gtt/mL = 1800 gtt
Calculate the flow rate in drops per minute (gtt/min):
Flow rate (gtt/min) = Total drops / Time (minutes)
Flow rate (gtt/min) = 1800 gtt / 60 minutes = 30 gtt/min
Correct Answer is ["19.5"]
Explanation
Determine the concentration of the drug solution:
You have 100 mg of drug N in 250 mL of IV fluid.
This can be expressed as a ratio: 100 mg / 250 mL
Calculate the mL per hour needed:
The client needs 7.8 mg of drug N per hour.
Use the concentration as a conversion factor to find the mL needed:
(7.8 mg / hr) x (250 mL / 100 mg) = 19.5 mL/hr
Set the IV pump:
The IV pump should be set to infuse at 19.5 mL/hr.
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