Tube Feeding Practice Problems

1.                  Convert to a fraction

a.      20%

b.      25%

c.      80%

2.                  Convert to a percent

a.      1/10

b.      1/3

c.      2/3

d.  3/4    

3.                  Supply:  240 cc can of full strength Sustacal.  How much water and how much Sustacal is needed to administer a feeding of 200 cc of ¾ strength Sustacal?

4.                  What strength solution will result if 80 cc of water is added to a 240cc  can of 100% Ensure?

5.                  On hand is a 180 cc can of 100% Enrich.  How much water is needed to give a 180 cc feeding of ¼ strength Enrich?

6.                  Supply is 480 cc of full-strength Sustacal.  120 cc water is added.  What is the strength of the resulting solution ?

7.                  Supply is a 240 cc can of 100% Sustacal.  How much water will be needed to administer a total of 240 cc of ½ strength Sustacal?

8.                  How much water is in a 225 cc feeding that is 75% strength?

9.                  On hand is an 8 oz. can Sustacal.  How many ml water will be needed to make the Sustacal  a 2/3 strength feeding?

10.              Supply: 40 cc Osmolite.  When 4 fluid ounces water is added, what is the strength of the solution?  Express your answer as a fraction.

11.              How much water is in a 250 cc feeding that is ½ strength?

12.              In a solution of 400 cc of ¾ strength Jevity, what is the CV?

13.              If there is 100 cc water in a 2/3 strength feeding solution, what is the TV?

14.              If a client is to receive 2400 calories daily and the Ensure contains 240 calories/ 8 oz. can, how many mL Ensure will the client receive daily?

15.              If the above feeding is to be 75% strength, how much water will be added to the feeding daily?

16.              A client is to receive a continuous drip feeding of Ensure.  There are 240 cal/ 8oz. can of Ensure.  The feeding is to provide 2000 cc/ 1500 calories.  What is the strength of the feeding?  Express the answer as a percentage.

KEY

 

1.                  a. 1/5

b. 1/4

c. 4/5

 

2.   a.         10%

b.                  33%

c.                   66%

d.                  75%

 

3.  

cc Sustacal =  200 cc  X 3 = 150 cc Sustacal
  1 4  

       200 – 150 = 50 cc water

 

  1. 240 cc Ensure + 80 cc water = 320 cc total
Desired strength =  240 (CV) = 0.75 or 3/4 strength
  320 (TV)  

  1. cc water = 180 cc X  3/4  water = 135 cc water

 

  1. 480 cc + 120 cc = 600 cc
    480 cc ¸ 600 cc = 80% or 4/5

   7.   TV X DS = CV     240 cc X 1/2 strength = 120cc CV

    240 (TV) - 120 (CV) = 120 cc water

8. 

cc water =  225 cc (TV) X 0.25 water = 56.25 or 56.3 cc water
       

 9.  

mL Sustacal =  30 mL   X 8 oz = 240 mL Sustacal
  1 oz 1  

    240 mL Sustacal  ÷ 2/3 = 240 X 3/2 = 720/2 = 360 TV – 240 = 120 cc water

10.   cc water = 30 mL/ 1 oz  X 4 oz. = 120 mL water

  40 cc Osmolite + 120 cc water = 160 cc TV

  40 cc Osmolite  ÷ 160 cc TV =  1/4 strength

11.   cc water = 250 cc X 1/2 = 125 cc

12.   cc Jevity = 400 cc X 3/4 = 300 cc Jevity   

13.       TV = 100 cc ÷ 1/3 = 100 cc X 3/1 = 300 cc

14.      

mL/ day =  30 mL   X 8 oz   X 2400 cal = 2400 mL Ensure/ day
  1 oz 240 cal 1 day  

15.              TV = CV ÷ DS

cc TV = 2400 mL = 2400 mL  X 4/3 = 9600 = 3200 TV
       3/4          3  

            3200 TV – 2400 CV = 800 cc water

16.     

cc Ensure =  30 mL   X 8 oz     X 1500 cal = 1500 cc Ensure
  1 oz 240 cal    

             TV = 2000 cc

            CV ÷ TV = DS

1500 cc  = 3/4 = 75%
2000 cc  

For more practice, go to Quiz 10