ATI NSG 1545 week 8

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Free ATI NSG 1545 week 8 Questions

1. A physician orders NS 600 mL to infuse over 5 hours. What rate in mL/hr should the nurse set on the IV pump?
  • 120 mL/hr

Explanation

Explanation
Correct Answer: 120 mL/hr
To calculate the IV flow rate, use the formula:
Flow rate = Total volume ÷ Total time
600 mL ÷ 5 hours = 120 mL/hr
The nurse should set the IV pump to 120 mL/hr to deliver the full 600 mL over the prescribed 5-hour period.
2. A patient is receiving 900 mL of NS at 100 mL/hr. How many hours will the infusion take? If the infusion starts at 08:30, at what military time will it finish?
  • 9 hours — Completion time: 17:30

Explanation

Explanation
Correct Answer: 9 hours — Completion time: 17:30
Step 1 — Calculate infusion duration:
Time = Total volume ÷ Flow rate 900 mL ÷ 100 mL/hr = 9 hours
Step 2 — Calculate completion time:
Start time: 08:30 08:30 + 9 hours = 17:30
The infusion will take 9 hours and will be complete at 17:30 military time.
3. A 1,000-mL bag of NS is ordered to infuse at 125 mL/hr. The tubing drop factor is 15 gtt/mL. What is the drip rate in gtt/min? (Round to the nearest whole number.)
  • 31 gtt/min

Explanation

Explanation

Correct Answer: 31 gtt/min

Use the formula:

Flow rate (gtt/min) = (Volume in mL × Drop factor) ÷ Time in minutes

Step 1 — Convert the flow rate to time in minutes:

Since the rate is 125 mL/hr, time for 125 mL = 60 minutes

Step 2 — Apply the formula:

(125 mL × 15 gtt/mL) ÷ 60 min = 1,875 ÷ 60 = 31.25 → rounded to 31 gtt/min

The nurse should set the drip rate to 31 gtt/min.

4. A provider orders D5W 300 mL over 3 hours. The tubing drop factor is 60 gtt/mL (microdrip). What is the drip rate in gtt/min?
  • 100 gtt/min

Explanation

Explanation
Correct Answer: 100 gtt/min
Use the formula:
Flow rate (gtt/min) = (Volume in mL × Drop factor) ÷ Time in minutes
Step 1 — Convert time to minutes:
3 hours × 60 min/hr = 180 minutes
Step 2 — Apply the formula:
(300 mL × 60 gtt/mL) ÷ 180 min = 18,000 ÷ 180 = 100 gtt/min
A key point to remember: with a microdrip set (60 gtt/mL), the gtt/min rate always equals the mL/hr rate. The drip rate is 100 gtt/min.
5. IV tubing with a drop factor of 20 gtt/mL is used to infuse 600 mL over 6 hours. What is the flow rate in gtt/min? (Round to the nearest whole number.)
  • 33 gtt/min

Explanation

Explanation

Correct Answer: 33 gtt/min

To calculate the flow rate in gtt/min, use the formula:

Flow rate (gtt/min) = (Volume in mL × Drop factor) ÷ Time in minutes

Step 1 — Convert time to minutes:

6 hours × 60 min/hr = 360 minutes

Step 2 — Apply the formula:

(600 mL × 20 gtt/mL) ÷ 360 min = 12,000 ÷ 360 = 33.33 → rounded to 33 gtt/min

The nurse should set the flow rate to 33 gtt/min.

6. A physician orders 450 mL of LR to infuse over 3 hours. What rate in mL/hr should be programmed on the IV pump?
  • 150 mL/hr

Explanation

Explanation
Correct Answer: 150 mL/hr
Use the formula:
Flow rate = Total volume ÷ Total time
450 mL ÷ 3 hours = 150 mL/hr
The nurse should program the IV pump to 150 mL/hr to deliver the full 450 mL over the prescribed 3-hour period.
7. An IV antibiotic is mixed in 150 mL and infuses at 75 mL/hr. How long will the infusion run? If it begins at 19:40, what is the completion time in military time?
  • 2 hours — Completion time: 21:40

Explanation

Explanation
Correct Answer: 2 hours — Completion time: 21:40
Step 1 — Calculate infusion duration:
Time = Total volume ÷ Flow rate 150 mL ÷ 75 mL/hr = 2 hours
Step 2 — Calculate completion time:
Start time: 19:40 19:40 + 2 hours = 21:40
The infusion will run for 2 hours and will be complete at 21:40 military time.
8. A client is receiving 1 L of LR at 125 mL/hr. How long will the infusion last in hours? If it begins at 07:20, when will it finish (military time)?
  • 8 hours — Completion time: 15:20

Explanation

Explanation

Correct Answer: 8 hours — Completion time: 15:20

Step 1 — Convert volume:

1 L = 1000 mL

Step 2 — Calculate infusion duration:

Time = Total volume ÷ Flow rate 1000 mL ÷ 125 mL/hr = 8 hours

Step 3 — Calculate completion time:

Start time: 07:20 07:20 + 8 hours = 15:20

The infusion will last 8 hours and will be complete at 15:20 military time.

9. A 120-mL IVPB antibiotic is ordered to infuse over 45 minutes. What rate in mL/hr should the nurse program into the IV pump?
  • 160 mL/hr

Explanation

Explanation
Correct Answer: 160 mL/hr
Since IV pumps are programmed in mL/hr, convert the ordered infusion time from minutes to hours, then calculate:
Flow rate = Volume ÷ Time (in hours)
Step 1 — Convert time to hours:
45 minutes ÷ 60 = 0.75 hours
Step 2 — Apply the formula:
120 mL ÷ 0.75 hours = 160 mL/hr
The nurse should program the IV pump to 160 mL/hr to deliver the full 120 mL over the prescribed 45 minutes.
10. An IV antibiotic in 300 mL is infusing at 100 mL/hr. How long will the infusion take? If it starts at 14:50, what is the completion time in military time?
  • 3 hours — Completion time: 17:50

Explanation

Explanation
Correct Answer: 3 hours — Completion time: 17:50
Step 1 — Calculate infusion duration:
Time = Total volume ÷ Flow rate 300 mL ÷ 100 mL/hr = 3 hours
Step 2 — Calculate completion time:
Start time: 14:50 14:50 + 3 hours = 17:50
The infusion will take 3 hours and will be complete at 17:50 military time.

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