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/mL1800 mL/day? mL/h18 h/day

Practice exercise (made-up values, not clinical guidance). A patient is prescribed 1800 mL of tube feed a day, run by pump over 18 hours. At what rate R do you set the pump, in mL/h? Round to the nearest whole number.

1800 mL/day18 h
R = mL/h
2.Easy
1.5 kcal/mL63 g protein/L35 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 35 mL/h for 24 hours a day. How many grams of protein P does the patient receive per day? Round to one decimal place.

35 mL/h24 h/day63 g/L
P = g/day
3.Medium
179 cmmanIBW = ? kg

Practice exercise (made-up values, not clinical guidance). Use the Devine formula to find the ideal body weight IBW of a man who is 179 cm tall (1 in = 2.54 cm). Round to one decimal place.

179 cmman1 in = 2.54 cm
IBW = kg
4.Medium
86 kg180 cmmanIBW (Devine)%IBW = ?

Practice exercise (made-up values, not clinical guidance). A man is 180 cm tall and weighs 86 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.

180 cm86 kgman
%IBW = %
5.Hard
24 hdextrose 20%1800 mLamino acids 4%1800 mLlipid 20%100 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 4% amino acids, plus 100 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 4%lipid 100 mL · 2 kcal/mL
NPC : N =
6.Hard
24 hdextrose 17.5%1000 mLamino acids 3.5%1000 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 1000 mL of parenteral nutrition with final concentrations of 17.5% dextrose and 3.5% 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.

1000 mLdextrose 17.5%amino acids 3.5%lipid 250 mL · 1.1 kcal/mL
NPC : N =

Answer key

  1. 1. R = 100 mL/h
  2. 2. P = 52.9 g/day
  3. 3. IBW = 74.1 kg
  4. 4. %IBW = 115 %
  5. 5. NPC : N = 124
  6. 6. NPC : N = 155

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