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/mL1500 kcal/day4 × ? mL4× per day

Practice exercise (made-up values, not clinical guidance). A patient on bolus tube feeding needs 1500 kcal a day from a formula that provides 1.5 kcal/mL. The daily amount is given as 4 equal boluses. What volume V is given in each bolus? Round to the nearest whole number.

1500 kcal/day1.5 kcal/mL4 boluses
V = mL
2.Easy
1.5 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
3.Medium
1.5 kcal/mL76% free water85 mL/hevery 4 h89 kg · 30 mL/kg/day20 h/dayV = ? mL

Practice exercise (made-up values, not clinical guidance). An 89 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 85 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.

89 kg30 mL/kg/day76%85 mL/h · 20 hevery 4 h
V = mL
4.Medium
40 g/L1.5 g/kg/day60 mL/h63 kg24 h/dayΔP = ? g

Practice exercise (made-up values, not clinical guidance). A 63 kg patient needs 1.5 g of protein per kg a day. The tube feed contains 40 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.

63 kg1.5 g/kg/day40 g/L60 mL/h · 24 h
ΔP = g/day
5.Hard
24 hdextrose 15%1000 mLamino acids 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 15% dextrose and 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 15%amino acids 5%lipid 250 mL · 1.1 kcal/mL
NPC : N =
6.Hard
24 hdextrose 17.5%1200 mLamino acids 3.5%1200 mLlipid 20%250 mL · 2 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 17.5% dextrose and 3.5% amino acids, plus 250 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.

1200 mLdextrose 17.5%amino acids 3.5%lipid 250 mL · 2 kcal/mL
NPC : N =

Answer key

  1. 1. V = 250 mL
  2. 2. V = 300 mL
  3. 3. V = 230 mL
  4. 4. ΔP = 36.9 g/day
  5. 5. NPC : N = 98
  6. 6. NPC : N = 181

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