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/mL68 g protein/L50 mL/h24 h/dayP = ? g/day

Practice exercise (made-up values, not clinical guidance). A tube feed with 68 g of protein per litre runs at 50 mL/h for 24 hours a day. How many grams of protein P does the patient receive per day? Round to one decimal place.

50 mL/h24 h/day68 g/L
P = g/day
2.Easy
1.5 kcal/mL1500 kcal/day? mL/h24 h/day

Practice exercise (made-up values, not clinical guidance). A patient needs 1500 kcal a day from a tube feed that provides 1.5 kcal/mL. The feed runs by pump for 24 hours a day. At what rate R do you set the pump, in mL/h? Round to the nearest whole number.

1500 kcal/day1.5 kcal/mL24 h
R = mL/h
3.Medium
192 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 192 cm tall (1 in = 2.54 cm). Round to one decimal place.

192 cmman1 in = 2.54 cm
IBW = kg
4.Medium
1.2 kcal/mL35 kcal/kg/day? mL/h87 kg20 h/day

Practice exercise (made-up values, not clinical guidance). An 87 kg adult (BMI below 30) needs 35 kcal/kg/day. The tube feed provides 1.2 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.

87 kg35 kcal/kg/day1.2 kcal/mL20 h
R = mL/h
5.Hard
18 hdextrose 12.5%2000 mLamino acids 4.25%2000 mL82 kg18 hGIR = ? mg/kg/min

Practice exercise (made-up values, not clinical guidance). An 82 kg adult receives 2000 mL of parenteral nutrition containing 12.5% dextrose, infused over 18 hours. Find the glucose infusion rate GIR in mg/kg/min. Round to two decimal places.

82 kg2000 mLdextrose 12.5%18 h
GIR = mg/kg/min
6.Hard
24 hdextrose 17.5%1500 mLamino acids 6%1500 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 1500 mL of parenteral nutrition with final concentrations of 17.5% dextrose and 6% 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.

1500 mLdextrose 17.5%amino acids 6%lipid 100 mL · 2 kcal/mL
NPC : N =

Answer key

  1. 1. P = 81.6 g/day
  2. 2. R = 42 mL/h
  3. 3. IBW = 85.9 kg
  4. 4. R = 127 mL/h
  5. 5. GIR = 2.82 mg/kg/min
  6. 6. NPC : N = 76

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