Calculate calorie to nitrogen ratio of a TPN solution consisting of 1500 ml of 50% dextrose,...
Calculate calorie to nitrogen ratio of a TPN solution consisting of 1500 ml of 50% dextrose, 10% fat, and 8.5% amino acid?
A. 216.2
B. 11.6
C. 191.2
D. 25.0
E. 30.6
Homework Answers
C.191.2
Calculation of calories:
50% dextrose - 50g/100ml = X/1500ml
X = 75g
Calories in 50% dextrose = 75g * 3.4 kcal/g = 2550kcal
10% fat - 10g/100ml = X/1500ml
X = 15g
Calories in 10% fat = 15g * 9 kcal/g = 1350 kcal
Total nonprotein calories = 2550kcal+1350kcal = 3900kcal
Calculation of grams of nitrogen in protein(1g N = 6.25g):
8.5% protien - 8.5g/100ml = X/1500ml
X = 127.5g
Grams of nitrogen in 8.5% protein = 127.5g/6.25g = 20.4
Calculation of calorie to nitrogen ratio:
Divide the nonprotein calories by grams of nitrogen
Calorie to nitrogen ration = 3900/20.4 =191.2
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Calculate calorie to nitrogen ratio of a TPN solution consisting
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