The nurse plans to provide the next shift with the intravenous (IV) fluid balance for a client who had a 440 mL secondary infusion that was started 2 hours ago at a rate of 85 mL/hour via an infusion pump. What is the remaining volume to be infused? (Enter numeric value only.)
The Correct Answer is ["270"]
Calculate the total volume infused so far:
Infusion rate: 85 mL/hour
Time elapsed: 2 hours
Total volume infused:
Volume = Rate x Time
Volume = 85 mL/hour * 2 hours = 170 mL
Calculate the remaining volume to be infused:
Initial volume of secondary infusion: 440 mL
Remaining volume:
Remaining volume = Initial volume - Volume infused
Remaining volume = 440 mL - 170 mL = 270 mL
Therefore, there are 270 mL of fluid remaining to be infused.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["200"]
Explanation
Here's the calculation:
The medication dose (ciprofloxacin 400 mg) needs to be delivered over the entire infusion duration (1 hour).
The total volume of the IV bag containing the medication (200 mL) is the volume that needs to be infused.
Although the ciprofloxacin itself might be concentrated in a smaller volume within the bag,
the entire bag with both the medication and diluent (dextrose 5% in water) needs to be delivered over the 1-hour timeframe.
Therefore, the infusion pump rate should be set to deliver the entire volume of the bag (200 mL) over the 1-hour duration, resulting in a rate of 200 mL/hour.
Correct Answer is ["12","000"]
Explanation
Here's the calculation for how many heparin units the client will receive in 12 hours:
Heparin concentration: The concentration of the heparin solution is 20,000 units in 500 mL (given). This translates to 40 units/mL (concentration = total units / volume).
Infusion rate: The client is receiving the solution at a rate of 25 mL/hour (given).
Time: We need to find the total heparin units received over 12 hours.
Calculation:
Find the total volume of the solution infused in 12 hours:
Total volume (mL) = Rate (mL/hour) x Time (hours)
Total volume (mL) = 25 mL/hour x 12 hours
Total volume (mL) = 300 mL
Find the total heparin units delivered in the infused volume:
Total heparin units = Volume of solution (mL) x Concentration (units/mL)
Total heparin units = 300 mL x 40 units/mL
Total heparin units = 12,000 units
Therefore, the client will receive 12,000 units of heparin in 12 hours.
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