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/L65 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 65 mL/h for 24 hours a day. How many grams of protein P does the patient receive per day? Round to one decimal place.

65 mL/h24 h/day63 g/L
P = g/day
2.Easy
1 kcal/mL1250 mL/day? mL/h24 h/day

Practice exercise (made-up values, not clinical guidance). A patient is prescribed 1250 mL of tube feed a day, run by pump over 24 hours. At what rate R do you set the pump, in mL/h? Round to the nearest whole number.

1250 mL/day24 h
R = mL/h
3.Medium
1.2 kcal/mL81% free water65 mL/hevery 4 h71 kg · 35 mL/kg/day20 h/dayV = ? mL

Practice exercise (made-up values, not clinical guidance). A 71 kg patient has a fluid goal of 35 mL/kg/day and receives all fluid through a feeding tube. The formula is 81% free water and runs at 65 mL/h for 20 hours a day. The rest of the fluid is given as water flushes every 4 hours. What volume V is each flush? Round to the nearest whole number.

71 kg35 mL/kg/day81%65 mL/h · 20 hevery 4 h
V = mL
4.Medium
1.5 kcal/mL25 kcal/kg/day? mL/h86 kg20 h/day

Practice exercise (made-up values, not clinical guidance). An 86 kg adult (BMI below 30) needs 25 kcal/kg/day. The tube feed provides 1.5 kcal/mL and runs by pump for 20 hours a day. At what rate R do you set the pump, in mL/h? Round to the nearest whole number.

86 kg25 kcal/kg/day1.5 kcal/mL20 h
R = mL/h
5.Hard
24 hdextrose 17.5%2400 mLamino acids 4.25%2400 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 2400 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.

2400 mLdextrose 17.5%amino acids 4.25%lipid 250 mL · 1.1 kcal/mL
E = kcal/day
6.Hard
24 hdextrose 12.5%1200 mLamino acids 4.25%1200 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 1200 mL of parenteral nutrition with final concentrations of 12.5% dextrose and 4.25% 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.

1200 mLdextrose 12.5%amino acids 4.25%lipid 250 mL · 1.1 kcal/mL
NPC : N =

Answer key

  1. 1. P = 98.3 g/day
  2. 2. R = 52 mL/h
  3. 3. V = 239 mL
  4. 4. R = 72 mL/h
  5. 5. E = 2111 kcal/day
  6. 6. NPC : N = 96

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