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/mL68 g protein/L100 mL/h18 h/dayP = ? g/day

Practice exercise (made-up values, not clinical guidance). A tube feed with 68 g of protein per litre runs at 100 mL/h for 18 hours a day. How many grams of protein P does the patient receive per day? Round to one decimal place.

100 mL/h18 h/day68 g/L
P = g/day
2.Easy
1.5 kcal/mL68 g protein/L60 mL/h16 h/dayE = ? kcal/day

Practice exercise (made-up values, not clinical guidance). A tube feed that provides 1.5 kcal/mL runs at 60 mL/h for 16 hours a day. How many kilocalories E does the patient receive per day?

60 mL/h16 h/day1.5 kcal/mL
E = kcal/day
3.Medium
162 cmwomanIBW = ? kg

Practice exercise (made-up values, not clinical guidance). Use the Devine formula to find the ideal body weight IBW of a woman who is 162 cm tall (1 in = 2.54 cm). Round to one decimal place.

162 cmwoman1 in = 2.54 cm
IBW = kg
4.Medium
1.2 kcal/mL81% free water80 mL/hevery 6 h61 kg · 35 mL/kg/day18 h/dayV = ? mL

Practice exercise (made-up values, not clinical guidance). A 61 kg patient has a fluid goal of 35 mL/kg/day and receives all fluid through a feeding tube. The formula is 81% free water and runs at 80 mL/h for 18 hours a day. The rest of the fluid is given as water flushes every 6 hours. What volume V is each flush? Round to the nearest whole number.

61 kg35 mL/kg/day81%80 mL/h · 18 hevery 6 h
V = mL
5.Hard
24 hdextrose 25%1200 mLamino acids 4.25%1200 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 1200 mL of parenteral nutrition with final concentrations of 25% dextrose and 4.25% 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.

1200 mLdextrose 25%amino acids 4.25%lipid 250 mL · 1.1 kcal/mL
NPC : N =
6.Hard
24 hdextrose 10%1500 mLamino acids 4%1500 mLlipid 20%500 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% amino acids, plus 500 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%lipid 500 mL · 2 kcal/mL
NPC : N =

Answer key

  1. 1. P = 122.4 g/day
  2. 2. E = 1440 kcal/day
  3. 3. IBW = 54.2 kg
  4. 4. V = 242 mL
  5. 5. NPC : N = 159
  6. 6. NPC : N = 157

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