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/mL1500 kcal/day? mL/h24 h/day

Practice exercise (made-up values, not clinical guidance). A patient needs 1500 kcal a day from a tube feed that provides 1 kcal/mL. The feed runs by pump for 24 hours a day. At what rate R do you set the pump, in mL/h? Round to the nearest whole number.

1500 kcal/day1 kcal/mL24 h
R = mL/h
2.Easy
1.5 kcal/mL1800 kcal/day8 × ? mL8× per day

Practice exercise (made-up values, not clinical guidance). A patient on bolus tube feeding needs 1800 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.

1800 kcal/day1.5 kcal/mL8 boluses
V = mL
3.Medium
1.2 kcal/mL25 kcal/kg/day? mL/h89 kg24 h/day

Practice exercise (made-up values, not clinical guidance). An 89 kg adult (BMI below 30) needs 25 kcal/kg/day. The tube feed provides 1.2 kcal/mL and runs by pump for 24 hours a day. At what rate R do you set the pump, in mL/h? Round to the nearest whole number.

89 kg25 kcal/kg/day1.2 kcal/mL24 h
R = mL/h
4.Medium
68 g/L2 g/kg/day85 mL/h84 kg20 h/dayΔP = ? g

Practice exercise (made-up values, not clinical guidance). An 84 kg patient needs 2 g of protein per kg a day. The tube feed contains 68 g of protein per litre and runs at 85 mL/h for 20 hours a day. How many grams of extra protein ΔP a day are still needed? Round to one decimal place.

84 kg2 g/kg/day68 g/L85 mL/h · 20 h
ΔP = g/day
5.Hard
24 hdextrose 12.5%2400 mLamino acids 3.5%2400 mLlipid 10%500 mL · 1.1 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 2400 mL of parenteral nutrition with final concentrations of 12.5% dextrose and 3.5% amino acids, plus 500 mL of 10% lipid emulsion (1.1 kcal/mL). Find the total energy E the patient receives in kcal per day. Round to the nearest whole number.

2400 mLdextrose 12.5%amino acids 3.5%lipid 500 mL · 1.1 kcal/mL
E = kcal/day
6.Hard
24 hdextrose 15%1800 mLamino acids 3.5%1800 mLlipid 20%250 mL · 2 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 15% dextrose and 3.5% amino acids, plus 250 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.

1800 mLdextrose 15%amino acids 3.5%lipid 250 mL · 2 kcal/mL
NPC : N =

Answer key

  1. 1. R = 63 mL/h
  2. 2. V = 150 mL
  3. 3. R = 77 mL/h
  4. 4. ΔP = 52.4 g/day
  5. 5. E = 1906 kcal/day
  6. 6. NPC : N = 141

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