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 kcal/mL1200 kcal/day5 × ? mL5× per day

Practice exercise (made-up values, not clinical guidance). A patient on bolus tube feeding needs 1200 kcal a day from a formula that provides 1 kcal/mL. The daily amount is given as 5 equal boluses. What volume V is given in each bolus? Round to the nearest whole number.

1200 kcal/day1 kcal/mL5 boluses
V = mL
2.Easy
1 kcal/mL1600 kcal/day? mL/h20 h/day

Practice exercise (made-up values, not clinical guidance). A patient needs 1600 kcal a day from a tube feed that provides 1 kcal/mL. The feed runs by pump for 20 hours a day. At what rate R do you set the pump, in mL/h? Round to the nearest whole number.

1600 kcal/day1 kcal/mL20 h
R = mL/h
3.Medium
40 g/L1.3 g/kg/day45 mL/h56 kg24 h/dayΔP = ? g

Practice exercise (made-up values, not clinical guidance). A 56 kg patient needs 1.3 g of protein per kg a day. The tube feed contains 40 g of protein per litre and runs at 45 mL/h for 24 hours a day. How many grams of extra protein ΔP a day are still needed? Round to one decimal place.

56 kg1.3 g/kg/day40 g/L45 mL/h · 24 h
ΔP = g/day
4.Medium
2 kcal/mL70% free water70 mL/hevery 8 h61 kg · 30 mL/kg/day24 h/dayV = ? mL

Practice exercise (made-up values, not clinical guidance). A 61 kg patient has a fluid goal of 30 mL/kg/day and receives all fluid through a feeding tube. The formula is 70% free water and runs at 70 mL/h for 24 hours a day. The rest of the fluid is given as water flushes every 8 hours. What volume V is each flush? Round to the nearest whole number.

61 kg30 mL/kg/day70%70 mL/h · 24 hevery 8 h
V = mL
5.Hard
24 hdextrose 15%2000 mLamino acids 4%2000 mLlipid 20%100 mL · 2 kcal/mLdextrose 3.4 kcal/gamino acids 4 kcal/gE = ? kcal

Practice exercise (made-up values, not clinical guidance). Over 24 hours a patient receives 2000 mL of parenteral nutrition with final concentrations of 15% dextrose and 4% amino acids, plus 100 mL of 20% lipid emulsion (2 kcal/mL). Find the total energy E the patient receives in kcal per day. Round to the nearest whole number.

2000 mLdextrose 15%amino acids 4%lipid 100 mL · 2 kcal/mL
E = kcal/day
6.Hard
24 hdextrose 10%1500 mLamino acids 4.25%1500 mLlipid 20%100 mL · 2 kcal/mLN = protein/6.25NPC : N = ? : 1

Practice exercise (made-up values, not clinical guidance). Over 24 hours a patient receives 1500 mL of parenteral nutrition with final concentrations of 10% dextrose and 4.25% amino acids, plus 100 mL of 20% lipid emulsion (2 kcal/mL). Find the non-protein kilocalorie to nitrogen ratio NPC : N (the number x in x : 1). Round to the nearest whole number.

1500 mLdextrose 10%amino acids 4.25%lipid 100 mL · 2 kcal/mL
NPC : N =

Answer key

  1. 1. V = 240 mL
  2. 2. R = 80 mL/h
  3. 3. ΔP = 29.6 g/day
  4. 4. V = 218 mL
  5. 5. E = 1540 kcal/day
  6. 6. NPC : N = 70

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