Quiz 5 - IV Calculations

Problems

1. When you come on duty at 0800 hrs, there are 300 mL left in your patient's IV.  It is infusing at 75 mL/hr on the PLUM infusion pump.  At what time do you anticipate needing a new IV bag?
2. Order: D5W 1000 mL q6h IV

What is the flow rate if there is an infusion pump?

________ mL/hr

3. Order: Add Aminophylline 500 mg to 500 mL D5W 

Supply: Aminophylline 25 mg/mL

Add ________mL to the D5W bag.

4. Order: Infuse 500 mL packed RBC's within 4 hours.

Drop factor is 10 gtt/ mL

Flow rate: _________ gtt/min

5. Order: Infuse 1L NS @ 150 mL/hr

Drop factor: 15 gtt/ mL

Flow rate: ________ gtt/min

6. Order: Ringer's Lactate 1000 mL over 12 hours using an infusion pump.

Flow rate: _________ mL/hr

7. Order: Vancomycin 1g q12 hours

Supply: Vancomycin 1 g in 250 mL D5W to be given over 1 hour

Flow rate: ________ mL/hr on the PLUM infusion pump

8. At 1130 hrs, your patient has 150 mL left in his IV bag.  It is infusing at 30 gtt/min.  Drop factor is 15 gtt/mL.  Do you have enough IV solution left to go to lunch (30 min) now, without changing the IV bag?
9. Give 1 L NS over 8 hours.

Drop factor: 15 gtt/ mL

Flow rate: ________ gtt/ min

10. Infuse 1 g Kefzol in 50 mL D5W over 20 min.

Set the PLUM infusion pump at ________mL/hr.

11. Order: 2000 mL Ringer's Lactate (RL) to run for 16 hours.

 Drop factor 10 gtt/mL

Flow rate _____ gtt/min     _____ mL/hr

12. Order: 1000 mL D5W to run for 10 hours

Drop factor 20 gtt/mL

Flow rate _____ gtt/min     _____ mL/hr

13. Order: 500 mL D5NS to run at 50 mL/hr

How many hours will this IV run?

Drop factor 15 gtt/mL

Flow rate: _____ gtt/min    

14. Order: 2500 mL D5RL to run at 125 mL/hr

How long will this IV run?

Drop factor 10 gtt/mL

Flow rate: ____ gtt/min

15. Order: 2 g Tazidine in 100 mL D5W to infuse over 45 min

Drop factor 20 gtt/mL

Flow rate _____ gtt/min     _____ mL/hr

16. Order: 300 mg Kanamycin IV in 100 mL D5W to run over 30 min

Drop factor 15 gtt/mL

Flow rate _____ gtt/min     _____ mL/hr

17. Order 1 g Vancomycin IV in 250 mL D5W to infuse over 1 hour

Drop factor 15 gtt/mL

Flow rate _____ gtt/min    

The IV is positional and often slows down.  After putting it on an infusion pump, the flow rate should be  _____ mL/hr

18. Order: Tobramycin 60 mg IV in 60 mL D5W to be infused over one hour.

Drop factor of the Buretrol is 60 gtt/mL

Flow rate _____ gtt/min

19. At 0800 the patient has 400 mL IV solution infusing at 75 mL/hr. At what time do you anticipate the IV bag will be empty?
20. At 0300 there was 250 mL D5W left in the IV bag.  The ordered rate was 50 mL/hr.  At 0700, just as you change shifts, the IV bag is empty.  What can you conclude about the flow rate?

a. Too slow

b. Too fast

c. On schedule


Key

1.      1200 hrs
2.      167 mL/hr
3.      20 mL
4.      21 gtt/min
5.      38 gtt/min
6.      83 mL/hr
7.      250 mL/hr
8.      Yes, the IV will last 75 min.
9.      31 gtt/min
10.    150 mL/hr
11.    21 gtt/min

         125 mL/hr

12.    33 gtt/min

        100 mL/hr

13.   10 hours

       12 gtt/min

14.  20 hours

      21 gtt/min

15. 44 gtt/min

      133 mL/hr

16. 50 gtt/min

     200 mL/hr

17. 62 gtt/min

      250 mL/hr

18. 60 gtt/min
19. 1320
20. Too fast.  It should have run until 0800

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