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/mL63 g protein/L95 mL/h20 h/dayP = ? g/day

Practice exercise (made-up values, not clinical guidance). A tube feed with 63 g of protein per litre runs at 95 mL/h for 20 hours a day. How many grams of protein P does the patient receive per day? Round to one decimal place.

95 mL/h20 h/day63 g/L
P = g/day
2.Easy
1.5 kcal/mL1500 kcal/day? mL/h12 h/day

Practice exercise (made-up values, not clinical guidance). A patient needs 1500 kcal a day from a tube feed that provides 1.5 kcal/mL. The feed runs by pump for 12 hours a day. At what rate R do you set the pump, in mL/h? Round to the nearest whole number.

1500 kcal/day1.5 kcal/mL12 h
R = mL/h
3.Medium
2 kcal/mL35 kcal/kg/day? mL/h58 kg16 h/day

Practice exercise (made-up values, not clinical guidance). A 58 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.

58 kg35 kcal/kg/day2 kcal/mL16 h
R = mL/h
4.Medium
44 g/L1.5 g/kg/day45 mL/h68 kg18 h/day5 g/scoopn = ?

Practice exercise (made-up values, not clinical guidance). A 68 kg patient needs 1.5 g of protein per kg a day. The tube feed contains 44 g of protein per litre and runs at 45 mL/h for 18 hours a day. A protein powder supplies 5 g of protein per scoop. How many scoops n a day are needed to cover the shortfall? Round up to a whole scoop.

68 kg1.5 g/kg/day44 g/L45 mL/h · 18 h5 g/scoop
n =
5.Hard
24 hdextrose 12.5%1800 mLamino acids 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 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 5%lipid 250 mL · 1.1 kcal/mL
NPC : N =
6.Hard
24 hdextrose 12.5%1000 mLamino acids 4%1000 mLlipid 20%500 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 1000 mL of parenteral nutrition with final concentrations of 12.5% dextrose and 4% amino acids, plus 500 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.

1000 mLdextrose 12.5%amino acids 4%lipid 500 mL · 2 kcal/mL
E = kcal/day

Answer key

  1. 1. P = 119.7 g/day
  2. 2. R = 83 mL/h
  3. 3. R = 63 mL/h
  4. 4. n = 14
  5. 5. NPC : N = 72
  6. 6. E = 1585 kcal/day

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