Deck 7: Basic Intravenous Calculations

Question 1

Ordered: 200 mL of lactated Ringer's solution is being delivered at 33 mL per hr.
How long will the IV take to infuse?

Answer 1

Question 2

Calculate the infusion time for an IV of 750 mL of D5W at 60 mL per hr.
How many hr will it take to infuse?

Answer 2

Question 3

Ordered: 500 mL to be infused in 90 min. The drop factor on the gravity tubing is 20 gtt/mL.
a. How many drops per min will you set the gravity device?
b. How many mL per hr will infuse if an electronic device is used?

Answer 3

Question 4

Calculate the infusion time for an IV of 1000 mL of normal saline (NS) at 30 gtt per min with a drop factor of 15.
How many hr will it take to infuse?

Question 5

Calculate the infusion time for an IV of 1000 mL of D5W to infuse at 40 gtt per min with a drop factor of 15 gtt per mL.
How many hr will it take to infuse?

Question 6

Ordered: 1000 mL D5W to infuse at 60 mL per hr.
How long will it take to infuse?

Question 7

A unit of blood (500 mL) is hung at 0800 hr. The flow rate is 40 gtt per min. The IV tubing drop factor is 10.
When will the infusion be completed?

Question 8

Ordered: 1000 mL 0.9% NS to infuse in 12 hr. The drop factor on the gravity tubing is 20.
At how many gtt per min will you regulate the IV?

Question 9

Ordered: IVPB with 150 mL of solution is to be infused in 50 min.
At how many mL per hr will you set the electronic device?

Question 10

Ordered: IVPB with 250 mL of solution to be infused in 20-40 min. The drop factor is 15 gtt per mL.
a. At how many gtt per min will you set the IV tubing to infuse 250 mL in the fastest time?
b. At how many mL per hr will the electronic IV device have to be set to infuse 250 mL in the fastest time?

Question 11

Ordered: 200 mL to be infused in 30-40 min. The drop factor is 20.
How many gtt per min will deliver the fastest rate?

Question 12

Ordered: 250 mL IVPB to be infused in 90 min. The drop factor is 15.
How many gtt per min will be infused?

Question 13

Step 1: Step 2: Ordered: 1500 mL of D5W to be infused in 12 hr.
How many mL per hr will you infuse?

Question 14

Ordered: 500 mL lactated Ringer's solution to infuse at 40 mL per hr. The IV was started at 1500 hr.
When will the IV be completed?

Question 15

Ordered: 1000 mL of 0.45% sodium chloride to be infused in 8 hr. The drop factor is 15.
At how many gtt per min will you regulate the IV?

Question 16

Ordered: 2000 mL of normal saline (NS) to infuse in 24 hr.
At how many mL per hr will you set the electronic device?

Question 17

An IV of 1000 mL is infusing at 83 mL per hr, and 420 mL remains to be infused.
How much time is left for the IV to infuse?

Question 18

Ordered: 150 mL IVPB is to be infused in 90 min.
a. If the IVPB is delivered via an electronic infusion device, at what rate will you set the device?
b. If the IVPB is delivered via a gravity device with a drop factor of 15, at what rate will you set the gravity pump?

Question 19

Ordered: 200 mL IVPB is to be infused in 40-60 min. The drop factor is microdrip.
a. How many gtt per min will be infused using the 60-min rate?
b. If the IVPB is delivered via an infusion device, at what rate will you set it?

Question 20

Ordered: Intravenous piggyback (IVPB) with 100 mL of solution to be infused in 40 min. The drop factor is 20.
At how many gtt per min will you regulate the IV?

Question 21

Ordered: 1000 mL 0.45% sodium chloride in 8 hr.

Question 22

Ordered: D₅LR 750 mL in 10 hr.

Question 23

Ordered: 1200 mL TPN in 12 hr.

Question 24

Ordered: 500 mL 0.9% NS in 8 hr.

Question 25

Ordered: 200 mL in 45 min.

Question 26

Ordered: 300 mL in 45 min.

Question 27

Ordered: 500 mL in 3 hr.

Question 28

Ordered: 1500 mL D5W in 24 hr.

Question 29

Ordered: Lactated Ringer's solution 500 mL in 6 hr.

Question 30

Ordered: 500 mL lactated Ringer's solution in 12 hr.

Question 31

Ordered: 150 mL in 50 min.

Question 32

Ordered: 2000 mL NS in 24 hr.

Question 33

Ordered: 1000 mL NS in 12 hr.

Question 34

Ordered: 50 mL in 45 min.

Question 35

Ordered: 150 mL in 30 min.

Question 36

Ordered: 300 mL in hr.

Question 37

Ordered: 50 mL in 30 min.

Question 38

Ordered: 200 mL in 50 min.

Question 39

Ordered: D5W 1500 mL in 15 hr.

Question 40

Ordered: 250 mL in 2 hr.