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/L60 mL/h16 h/dayP = ? g/day

Practice exercise (made-up values, not clinical guidance). A tube feed with 63 g of protein per litre runs at 60 mL/h for 16 hours a day. How many grams of protein P does the patient receive per day? Round to one decimal place.

60 mL/h16 h/day63 g/L
P = g/day
2.Easy
1 kcal/mL1400 kcal/day? mL/h16 h/day

Practice exercise (made-up values, not clinical guidance). A patient needs 1400 kcal a day from a tube feed that provides 1 kcal/mL. The feed 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.

1400 kcal/day1 kcal/mL16 h
R = mL/h
3.Medium
51 kg166 cmmanIBW (Devine)%IBW = ?

Practice exercise (made-up values, not clinical guidance). A man is 166 cm tall and weighs 51 kg. Find the actual weight as a percentage of the ideal body weight, %IBW, using the Devine formula (1 in = 2.54 cm). Round to the nearest whole number.

166 cm51 kgman
%IBW = %
4.Medium
63 g/L2 g/kg/day60 mL/h53 kg24 h/dayΔP = ? g

Practice exercise (made-up values, not clinical guidance). A 53 kg patient needs 2 g of protein per kg a day. The tube feed contains 63 g of protein per litre and runs at 60 mL/h for 24 hours a day. How many grams of extra protein ΔP a day are still needed? Round to one decimal place.

53 kg2 g/kg/day63 g/L60 mL/h · 24 h
ΔP = g/day
5.Hard
24 hdextrose 25%1200 mLamino acids 4.25%1200 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 1200 mL of parenteral nutrition with final concentrations of 25% dextrose and 4.25% 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.

1200 mLdextrose 25%amino acids 4.25%lipid 250 mL · 2 kcal/mL
E = kcal/day
6.Hard
24 hdextrose 12.5%2000 mLamino acids 3.5%2000 mLlipid 10%500 mL · 1.1 kcal/mLN = protein/6.25NPC : N = ? : 1

Practice exercise (made-up values, not clinical guidance). Over 24 hours a patient receives 2000 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 non-protein kilocalorie to nitrogen ratio NPC : N (the number x in x : 1). Round to the nearest whole number.

2000 mLdextrose 12.5%amino acids 3.5%lipid 500 mL · 1.1 kcal/mL
NPC : N =

Answer key

  1. 1. P = 60.5 g/day
  2. 2. R = 88 mL/h
  3. 3. %IBW = 82 %
  4. 4. ΔP = 15.3 g/day
  5. 5. E = 1724 kcal/day
  6. 6. NPC : N = 125

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