Tube feeding nursing calculations for students!
In this quiz, you will be tested on tube feeding dilution (how much water to add to the tube feeding based on the ordered strength: 1/2, 3/4, 1/4, etc.), calculating the total volume to administered, and how long it will take for the tube feeding to be administered.
Don’t forget to check out the other nursing calculation quizzes on this site and to watch the lecture on tube feeding nursing calculations before taking the quiz.
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Tube Feeding Nursing Calculations
1. The patient is ordered Jevity 1.2 cal. You’re supplied with a can of Jevity that contains 237 mL of feeding formula. The doctor orders the tube feeding to be administered at a ¾ strength with a rate of 50 mL/hr. How much water will you add to dilute the tube feeding formula as prescribed?
A. 316 mL
B. 79 mL
C. 948 mL
D. 52 mL
The answer is B: 79 mL (remember the question asked for only the AMOUNT of WATER that will be used to dilute the tube feeding)
2. The patient is ordered Jevity 1.0 cal. You’re supplied with a can of Jevity that contains 237 mL of feeding formula. The doctor orders the tube feeding to be administered at a 1/3 strength with a rate of 55 mL/hr. What is the total volume of feeding that will be administered?
A. 474 mL
B. 237 mL
C. 711 mL
D. 79 mL
The answer is C: 711 mL (remember the question asked for the TOTAL VOLUME of feeding that will be administered…this includes the feeding formula amount AND water).
3. The patient is ordered Glucerna 1.2 cal. You’re supplied with a can of Glucerna that contains 237 mL of feeding formula. The doctor orders the tube feeding to be administered at a 1/2 strength with a rate of 65 mL/hr. How much water will you add to dilute the tube feeding formula as prescribed?
A. 118.5 mL
B. 474 mL
C. 68 mL
D. 237 mL
The answer is D: 237 mL (remember the question asked for only the AMOUNT of WATER that will be used to dilute to tube feeding)
4. The patient is ordered Glucerna 1.2 cal. You’re supplied with a can of Glucerna that contains 237 mL of feeding formula. The doctor orders the tube feeding to be administered at a 1/4 strength with a rate of 45 mL/hr. What is the total volume of feeding that will be administered?
A. 948 mL
B. 711 mL
C. 237 mL
D. 52 mL
The answer is A: 948 mL (remember the question asked for the TOTAL VOLUME of feeding that will be administered….this includes the feeding formula amount AND water)
5. The MD orders Glucerna via the patient’s nasogastric tube. The formula is to be administered at a 1/2 strength with a rate of 40 mL/hr. You’re supplied with a 237 mL can of Glucerna. How long will it take to administer this feeding formula as prescribed?
A. 11 hours 51 minutes
B. 11 hours 85 minutes
C. 3 hours 30 minutes
D. 2 hours 15 minutes
The answer is A: 11 hours 51 minutes
6. The MD orders Glucerna via the patient’s nasogastric tube. The formula is to be administered at a 3/4 strength with a rate of 60 mL/hr. You’re supplied with a 237 mL can of Glucerna. How long will it take to administer this feeding formula as prescribed?
A. 5 hours
B. 5 hours 16 minutes
C. 3 hours 23 minutes
D. 3 hours
The answer is B: 5 hours and 16 minutes
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