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A patient is receiving an intermittent tube feeding/bolus of 300cc formula, four times per day. The formula provides 1.5 kcal/cc and 795cc water/liter. The patient’s estimated daily fluid requirement is 1800cc/24 hours. How much additional water will be required per feeding?







A TPN prescription consists of the following:
500ml 50% dextrose
500ml 8.5% amino acids
500ml 10% lipids
This will provide how many total calories and how many grams of
protein?







1. Answer T:a 212 ml
The amount of feed given to patient= 300 X 4= 1200 ml of formula feed.
The amount of water in 1 litre feed = 795 ml
The amount of water recieved through feeds the entire day = 795 X 1.2 = 954ml /24 hours
Patient's requirement = 1800 ml
Deficit = 1800 954 = 846 ml
If it is given complementary to feed, then it will be given 4 times daily. Hence additional water to be given along with feed = 846/4 =212ml
2 amount of calories in:
1gm carbohydrates = 4 kcal
1gm protein = 4 kcal
1gm fat = 9kcal
Amount of carbohydrate given to patient = 50% of 500ml = 250 gm
Amount of proteins = 8.5% of 500ml = 44 gms
Amount of fat = 10% of 500ml = 50 gms
Total calories = 250 x4 + 44x 4 + 50x 9 = 1620 kcal
Approximate to nearest answer
1570 kcal and 42.5gms of protein
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