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
1.2 kcal/mL1000 mL/day? mL/h16 h/day

Practice exercise (made-up values, not clinical guidance). A patient is prescribed 1000 mL of tube feed a day, run by pump over 16 hours. At what rate R do you set the pump, in mL/h? Round to the nearest whole number.

1000 mL/day16 h
R = mL/h
2.Easy
1.2 kcal/mL55 g protein/L80 mL/h20 h/dayP = ? g/day

Practice exercise (made-up values, not clinical guidance). A tube feed with 55 g of protein per litre runs at 80 mL/h for 20 hours a day. How many grams of protein P does the patient receive per day? Round to one decimal place.

80 mL/h20 h/day55 g/L
P = g/day
3.Medium
55 g/L2 g/kg/day65 mL/h53 kg18 h/dayΔP = ? g

Practice exercise (made-up values, not clinical guidance). A 53 kg patient needs 2 g of protein per kg a day. The tube feed contains 55 g of protein per litre and runs at 65 mL/h for 18 hours a day. How many grams of extra protein ΔP a day are still needed? Round to one decimal place.

53 kg2 g/kg/day55 g/L65 mL/h · 18 h
ΔP = g/day
4.Medium
51 kg171 cmmanIBW (Devine)%IBW = ?

Practice exercise (made-up values, not clinical guidance). A man is 171 cm tall and weighs 51 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.

171 cm51 kgman
%IBW = %
5.Hard
24 hdextrose 17.5%1800 mLamino acids 3.5%1800 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 1800 mL of parenteral nutrition with final concentrations of 17.5% dextrose and 3.5% 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.

1800 mLdextrose 17.5%amino acids 3.5%lipid 500 mL · 1.1 kcal/mL
NPC : N =
6.Hard
110 kg183 cmmanBMI = kg/m²P = ? g/day

Practice exercise (made-up values, not clinical guidance). A critically ill man is 183 cm tall and weighs 110 kg. The practice protocol gives 2 g of protein per kg of ideal body weight (Devine) per day if the BMI is 30 to under 40 kg/m², and 2.5 g/kg of ideal body weight per day if the BMI is 40 kg/m² or more. Find the protein goal P in g/day. Round to the nearest whole number.

183 cm110 kgmanBMI 30–40: 2 g/kg IBWBMI ≥ 40: 2.5 g/kg IBW
P = g/day

Answer key

  1. 1. R = 63 mL/h
  2. 2. P = 88 g/day
  3. 3. ΔP = 41.7 g/day
  4. 4. %IBW = 76 %
  5. 5. NPC : N = 161
  6. 6. P = 155 g/day

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