Enteral & parenteral nutrition calculations worksheet with answers

Free printable Enteral & parenteral nutrition calculations worksheet: 6 problems from easy to exam level, with an answer key. Print it or save it as a PDF.

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Name: ____________________   Date: ____________

1.Easy
1.5 kcal/mL1500 kcal/day8 × ? mL8× per day

Practice exercise (made-up values, not clinical guidance). A patient on bolus tube feeding needs 1500 kcal a day from a formula that provides 1.5 kcal/mL. The daily amount is given as 8 equal boluses. What volume V is given in each bolus? Round to the nearest whole number.

1500 kcal/day1.5 kcal/mL8 boluses
V = mL
2.Easy
1 kcal/mL44 g protein/L100 mL/h20 h/dayP = ? g/day

Practice exercise (made-up values, not clinical guidance). A tube feed with 44 g of protein per litre runs at 100 mL/h for 20 hours a day. How many grams of protein P does the patient receive per day? Round to one decimal place.

100 mL/h20 h/day44 g/L
P = g/day
3.Medium
1.5 kcal/mL30 kcal/kg/day? mL/h71 kg16 h/day

Practice exercise (made-up values, not clinical guidance). A 71 kg adult (BMI below 30) needs 30 kcal/kg/day. The tube feed provides 1.5 kcal/mL and runs by pump for 16 hours a day. At what rate R do you set the pump, in mL/h? Round to the nearest whole number.

71 kg30 kcal/kg/day1.5 kcal/mL16 h
R = mL/h
4.Medium
55 g/L2 g/kg/day55 mL/h53 kg18 h/dayΔP = ? g

Practice exercise (made-up values, not clinical guidance). A 53 kg patient needs 2 g of protein per kg a day. The tube feed contains 55 g of protein per litre and runs at 55 mL/h for 18 hours a day. How many grams of extra protein ΔP a day are still needed? Round to one decimal place.

53 kg2 g/kg/day55 g/L55 mL/h · 18 h
ΔP = g/day
5.Hard
24 hdextrose 12.5%1800 mLamino acids 3.5%1800 mLlipid 10%250 mL · 1.1 kcal/mLN = protein/6.25NPC : N = ? : 1

Practice exercise (made-up values, not clinical guidance). Over 24 hours a patient receives 1800 mL of parenteral nutrition with final concentrations of 12.5% dextrose and 3.5% amino acids, plus 250 mL of 10% lipid emulsion (1.1 kcal/mL). Find the non-protein kilocalorie to nitrogen ratio NPC : N (the number x in x : 1). Round to the nearest whole number.

1800 mLdextrose 12.5%amino acids 3.5%lipid 250 mL · 1.1 kcal/mL
NPC : N =
6.Hard
24 hdextrose 20%1000 mLamino acids 3.5%1000 mLlipid 10%250 mL · 1.1 kcal/mLN = protein/6.25NPC : N = ? : 1

Practice exercise (made-up values, not clinical guidance). Over 24 hours a patient receives 1000 mL of parenteral nutrition with final concentrations of 20% dextrose and 3.5% amino acids, plus 250 mL of 10% lipid emulsion (1.1 kcal/mL). Find the non-protein kilocalorie to nitrogen ratio NPC : N (the number x in x : 1). Round to the nearest whole number.

1000 mLdextrose 20%amino acids 3.5%lipid 250 mL · 1.1 kcal/mL
NPC : N =

Answer key

  1. 1. V = 125 mL
  2. 2. P = 88 g/day
  3. 3. R = 89 mL/h
  4. 4. ΔP = 51.6 g/day
  5. 5. NPC : N = 103
  6. 6. NPC : N = 171

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