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 mL/day5 × ? mL5× per day

Practice exercise (made-up values, not clinical guidance). A patient is prescribed 1500 mL of formula a day, given as 5 equal bolus feeds. What volume V is given in each bolus? Round to the nearest whole number.

1500 mL/day5 boluses
V = mL
2.Easy
1.5 kcal/mL63 g protein/L30 mL/h24 h/dayP = ? g/day

Practice exercise (made-up values, not clinical guidance). A tube feed with 63 g of protein per litre runs at 30 mL/h for 24 hours a day. How many grams of protein P does the patient receive per day? Round to one decimal place.

30 mL/h24 h/day63 g/L
P = g/day
3.Medium
68 g/L2 g/kg/day90 mL/h93 kg20 h/dayΔP = ? g

Practice exercise (made-up values, not clinical guidance). A 93 kg patient needs 2 g of protein per kg a day. The tube feed contains 68 g of protein per litre and runs at 90 mL/h for 20 hours a day. How many grams of extra protein ΔP a day are still needed? Round to one decimal place.

93 kg2 g/kg/day68 g/L90 mL/h · 20 h
ΔP = g/day
4.Medium
123 kg186 cmmanIBW (Devine)%IBW = ?

Practice exercise (made-up values, not clinical guidance). A man is 186 cm tall and weighs 123 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.

186 cm123 kgman
%IBW = %
5.Hard
24 hdextrose 10%2000 mLamino acids 4.25%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 10% dextrose and 4.25% 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 10%amino acids 4.25%lipid 500 mL · 1.1 kcal/mL
NPC : N =
6.Hard
24 hdextrose 17.5%1000 mLamino acids 4.25%1000 mLlipid 10%250 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 1000 mL of parenteral nutrition with final concentrations of 17.5% dextrose and 4.25% amino acids, plus 250 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.

1000 mLdextrose 17.5%amino acids 4.25%lipid 250 mL · 1.1 kcal/mL
E = kcal/day

Answer key

  1. 1. V = 300 mL
  2. 2. P = 45.4 g/day
  3. 3. ΔP = 63.6 g/day
  4. 4. %IBW = 153 %
  5. 5. NPC : N = 90
  6. 6. E = 1040 kcal/day

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