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/L45 mL/h24 h/dayE = ? kcal/day

Practice exercise (made-up values, not clinical guidance). A tube feed that provides 1 kcal/mL runs at 45 mL/h for 24 hours a day. How many kilocalories E does the patient receive per day?

45 mL/h24 h/day1 kcal/mL
E = kcal/day
2.Easy
1 kcal/mL1200 kcal/day? mL/h16 h/day

Practice exercise (made-up values, not clinical guidance). A patient needs 1200 kcal a day from a tube feed that provides 1 kcal/mL. The feed runs by pump for 16 hours a day. At what rate R do you set the pump, in mL/h? Round to the nearest whole number.

1200 kcal/day1 kcal/mL16 h
R = mL/h
3.Medium
105 kg170 cmmanIBW (Devine)%IBW = ?

Practice exercise (made-up values, not clinical guidance). A man is 170 cm tall and weighs 105 kg. Find the actual weight as a percentage of the ideal body weight, %IBW, using the Devine formula (1 in = 2.54 cm). Round to the nearest whole number.

170 cm105 kgman
%IBW = %
4.Medium
1.5 kcal/mL30 kcal/kg/day? mL/h49 kg16 h/day

Practice exercise (made-up values, not clinical guidance). A 49 kg adult (BMI below 30) needs 30 kcal/kg/day. The tube feed provides 1.5 kcal/mL and runs by pump for 16 hours a day. At what rate R do you set the pump, in mL/h? Round to the nearest whole number.

49 kg30 kcal/kg/day1.5 kcal/mL16 h
R = mL/h
5.Hard
24 hdextrose 12.5%2400 mLamino acids 3.5%2400 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 2400 mL of parenteral nutrition with final concentrations of 12.5% dextrose and 3.5% 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.

2400 mLdextrose 12.5%amino acids 3.5%lipid 500 mL · 2 kcal/mL
NPC : N =
6.Hard
139 kg173 cmmanBMI = kg/m²E = ? kcal/day

Practice exercise (made-up values, not clinical guidance). A critically ill man is 173 cm tall and weighs 139 kg. The practice protocol gives 12 kcal/kg of actual body weight per day if the BMI is 30–50 kg/m², and 23 kcal/kg of ideal body weight (Devine) per day if the BMI is above 50 kg/m². Find the energy goal E in kcal/day. Round to the nearest whole number.

173 cm139 kgmanBMI 30–50: 12 kcal/kg actualBMI > 50: 23 kcal/kg IBW
E = kcal/day

Answer key

  1. 1. E = 1080 kcal/day
  2. 2. R = 75 mL/h
  3. 3. %IBW = 159 %
  4. 4. R = 61 mL/h
  5. 5. NPC : N = 150
  6. 6. E = 1668 kcal/day

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