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
1.2 kcal/mL1800 kcal/day? mL/h24 h/day

Practice exercise (made-up values, not clinical guidance). A patient needs 1800 kcal a day from a tube feed that provides 1.2 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.

1800 kcal/day1.2 kcal/mL24 h
R = mL/h
2.Easy
1.5 kcal/mL1200 mL/day8 × ? mL8× per day

Practice exercise (made-up values, not clinical guidance). A patient is prescribed 1200 mL of formula a day, given as 8 equal bolus feeds. What volume V is given in each bolus? Round to the nearest whole number.

1200 mL/day8 boluses
V = mL
3.Medium
84 g/L1.5 g/kg/day55 mL/h65 kg16 h/dayΔP = ? g

Practice exercise (made-up values, not clinical guidance). A 65 kg patient needs 1.5 g of protein per kg a day. The tube feed contains 84 g of protein per litre and runs at 55 mL/h for 16 hours a day. How many grams of extra protein ΔP a day are still needed? Round to one decimal place.

65 kg1.5 g/kg/day84 g/L55 mL/h · 16 h
ΔP = g/day
4.Medium
2 kcal/mL35 kcal/kg/day? mL/h60 kg16 h/day

Practice exercise (made-up values, not clinical guidance). A 60 kg adult (BMI below 30) needs 35 kcal/kg/day. The tube feed provides 2 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.

60 kg35 kcal/kg/day2 kcal/mL16 h
R = mL/h
5.Hard
24 hdextrose 20%1800 mLamino acids 6%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 20% dextrose and 6% 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 20%amino acids 6%lipid 250 mL · 2 kcal/mL
NPC : N =
6.Hard
24 hdextrose 17.5%1800 mLamino acids 4%1800 mLlipid 20%250 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 1800 mL of parenteral nutrition with final concentrations of 17.5% dextrose and 4% amino acids, plus 250 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.

1800 mLdextrose 17.5%amino acids 4%lipid 250 mL · 2 kcal/mL
E = kcal/day

Answer key

  1. 1. R = 63 mL/h
  2. 2. V = 150 mL
  3. 3. ΔP = 23.6 g/day
  4. 4. R = 66 mL/h
  5. 5. NPC : N = 100
  6. 6. E = 1859 kcal/day

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