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/mL40 g protein/L30 mL/h16 h/dayP = ? g/day

Practice exercise (made-up values, not clinical guidance). A tube feed with 40 g of protein per litre runs at 30 mL/h for 16 hours a day. How many grams of protein P does the patient receive per day? Round to one decimal place.

30 mL/h16 h/day40 g/L
P = g/day
2.Easy
2 kcal/mL2400 kcal/day6 × ? mL6× per day

Practice exercise (made-up values, not clinical guidance). A patient on bolus tube feeding needs 2400 kcal a day from a formula that provides 2 kcal/mL. The daily amount is given as 6 equal boluses. What volume V is given in each bolus? Round to the nearest whole number.

2400 kcal/day2 kcal/mL6 boluses
V = mL
3.Medium
1.5 kcal/mL76% free water60 mL/hevery 4 h84 kg · 30 mL/kg/day18 h/dayV = ? mL

Practice exercise (made-up values, not clinical guidance). An 84 kg patient has a fluid goal of 30 mL/kg/day and receives all fluid through a feeding tube. The formula is 76% free water and runs at 60 mL/h for 18 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.

84 kg30 mL/kg/day76%60 mL/h · 18 hevery 4 h
V = mL
4.Medium
68 g/L1.3 g/kg/day45 mL/h76 kg20 h/dayΔP = ? g

Practice exercise (made-up values, not clinical guidance). A 76 kg patient needs 1.3 g of protein per kg a day. The tube feed contains 68 g of protein per litre and runs at 45 mL/h for 20 hours a day. How many grams of extra protein ΔP a day are still needed? Round to one decimal place.

76 kg1.3 g/kg/day68 g/L45 mL/h · 20 h
ΔP = g/day
5.Hard
24 hdextrose 25%1200 mLamino acids 6%1200 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 1200 mL of parenteral nutrition with final concentrations of 25% dextrose and 6% 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.

1200 mLdextrose 25%amino acids 6%lipid 250 mL · 1.1 kcal/mL
E = kcal/day
6.Hard
24 hdextrose 25%1000 mLamino acids 5%1000 mLlipid 20%500 mL · 2 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 25% dextrose and 5% amino acids, plus 500 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.

1000 mLdextrose 25%amino acids 5%lipid 500 mL · 2 kcal/mL
NPC : N =

Answer key

  1. 1. P = 19.2 g/day
  2. 2. V = 200 mL
  3. 3. V = 283 mL
  4. 4. ΔP = 37.6 g/day
  5. 5. E = 1583 kcal/day
  6. 6. NPC : N = 231

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