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/L55 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 55 mL/h for 24 hours a day. How many grams of protein P does the patient receive per day? Round to one decimal place.

55 mL/h24 h/day63 g/L
P = g/day
2.Easy
2 kcal/mL1600 kcal/day? mL/h12 h/day

Practice exercise (made-up values, not clinical guidance). A patient needs 1600 kcal a day from a tube feed that provides 2 kcal/mL. The feed runs by pump for 12 hours a day. At what rate R do you set the pump, in mL/h? Round to the nearest whole number.

1600 kcal/day2 kcal/mL12 h
R = mL/h
3.Medium
40 g/L1.2 g/kg/day70 mL/h94 kg16 h/dayΔP = ? g

Practice exercise (made-up values, not clinical guidance). A 94 kg patient needs 1.2 g of protein per kg a day. The tube feed contains 40 g of protein per litre and runs at 70 mL/h for 16 hours a day. How many grams of extra protein ΔP a day are still needed? Round to one decimal place.

94 kg1.2 g/kg/day40 g/L70 mL/h · 16 h
ΔP = g/day
4.Medium
1.5 kcal/mL76% free water40 mL/hevery 4 h52 kg · 35 mL/kg/day18 h/dayV = ? mL

Practice exercise (made-up values, not clinical guidance). A 52 kg patient has a fluid goal of 35 mL/kg/day and receives all fluid through a feeding tube. The formula is 76% free water and runs at 40 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.

52 kg35 mL/kg/day76%40 mL/h · 18 hevery 4 h
V = mL
5.Hard
12 hdextrose 20%1200 mLamino acids 6%1200 mL81 kg12 hGIR = ? mg/kg/min

Practice exercise (made-up values, not clinical guidance). An 81 kg adult receives 1200 mL of parenteral nutrition containing 20% dextrose, infused over 12 hours. Find the glucose infusion rate GIR in mg/kg/min. Round to two decimal places.

81 kg1200 mLdextrose 20%12 h
GIR = mg/kg/min
6.Hard
24 hdextrose 10%1500 mLamino acids 5%1500 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 1500 mL of parenteral nutrition with final concentrations of 10% dextrose and 5% 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.

1500 mLdextrose 10%amino acids 5%lipid 500 mL · 1.1 kcal/mL
NPC : N =

Answer key

  1. 1. P = 83.2 g/day
  2. 2. R = 67 mL/h
  3. 3. ΔP = 68 g/day
  4. 4. V = 212 mL
  5. 5. GIR = 4.12 mg/kg/min
  6. 6. NPC : N = 88

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