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/mL1250 mL/day? mL/h24 h/day

Practice exercise (made-up values, not clinical guidance). A patient is prescribed 1250 mL of tube feed a day, run by pump over 24 hours. At what rate R do you set the pump, in mL/h? Round to the nearest whole number.

1250 mL/day24 h
R = mL/h
2.Easy
1.5 kcal/mL63 g protein/L55 mL/h16 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 16 hours a day. How many grams of protein P does the patient receive per day? Round to one decimal place.

55 mL/h16 h/day63 g/L
P = g/day
3.Medium
1.5 kcal/mL76% free water75 mL/hevery 8 h59 kg · 30 mL/kg/day18 h/dayV = ? mL

Practice exercise (made-up values, not clinical guidance). A 59 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 75 mL/h for 18 hours a day. The rest of the fluid is given as water flushes every 8 hours. What volume V is each flush? Round to the nearest whole number.

59 kg30 mL/kg/day76%75 mL/h · 18 hevery 8 h
V = mL
4.Medium
68 g/L1.5 g/kg/day50 mL/h52 kg16 h/dayΔP = ? g

Practice exercise (made-up values, not clinical guidance). A 52 kg patient needs 1.5 g of protein per kg a day. The tube feed contains 68 g of protein per litre and runs at 50 mL/h for 16 hours a day. How many grams of extra protein ΔP a day are still needed? Round to one decimal place.

52 kg1.5 g/kg/day68 g/L50 mL/h · 16 h
ΔP = g/day
5.Hard
130 kg163 cmwomanBMI = kg/m²P = ? g/day

Practice exercise (made-up values, not clinical guidance). A critically ill woman is 163 cm tall and weighs 130 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.

163 cm130 kgwomanBMI 30–40: 2 g/kg IBWBMI ≥ 40: 2.5 g/kg IBW
P = g/day
6.Hard
24 hdextrose 17.5%1200 mLamino acids 4%1200 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 1200 mL of parenteral nutrition with final concentrations of 17.5% dextrose and 4% 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.

1200 mLdextrose 17.5%amino acids 4%lipid 100 mL · 2 kcal/mL
NPC : N =

Answer key

  1. 1. R = 52 mL/h
  2. 2. P = 55.4 g/day
  3. 3. V = 248 mL
  4. 4. ΔP = 23.6 g/day
  5. 5. P = 138 g/day
  6. 6. NPC : N = 119

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