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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1.Easy
1 kcal/mL1200 kcal/day4 × ? mL4× per day

Practice exercise (made-up values, not clinical guidance). A patient on bolus tube feeding needs 1200 kcal a day from a formula that provides 1 kcal/mL. The daily amount is given as 4 equal boluses. What volume V is given in each bolus? Round to the nearest whole number.

1200 kcal/day1 kcal/mL4 boluses
V = mL
2.Easy
1 kcal/mL1800 mL/day6 × ? mL6× per day

Practice exercise (made-up values, not clinical guidance). A patient is prescribed 1800 mL of formula a day, given as 6 equal bolus feeds. What volume V is given in each bolus? Round to the nearest whole number.

1800 mL/day6 boluses
V = mL
3.Medium
1.5 kcal/mL30 kcal/kg/day? mL/h73 kg24 h/day

Practice exercise (made-up values, not clinical guidance). A 73 kg adult (BMI below 30) needs 30 kcal/kg/day. The tube feed provides 1.5 kcal/mL and 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.

73 kg30 kcal/kg/day1.5 kcal/mL24 h
R = mL/h
4.Medium
44 g/L1.5 g/kg/day90 mL/h54 kg16 h/day5 g/scoopn = ?

Practice exercise (made-up values, not clinical guidance). A 54 kg patient needs 1.5 g of protein per kg a day. The tube feed contains 44 g of protein per litre and runs at 90 mL/h for 16 hours a day. A protein powder supplies 5 g of protein per scoop. How many scoops n a day are needed to cover the shortfall? Round up to a whole scoop.

54 kg1.5 g/kg/day44 g/L90 mL/h · 16 h5 g/scoop
n =
5.Hard
117 kg166 cmwomanBMI = kg/m²P = ? g/day

Practice exercise (made-up values, not clinical guidance). A critically ill woman is 166 cm tall and weighs 117 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.

166 cm117 kgwomanBMI 30–40: 2 g/kg IBWBMI ≥ 40: 2.5 g/kg IBW
P = g/day
6.Hard
24 hdextrose 20%1000 mLamino acids 6%1000 mLlipid 20%250 mL · 2 kcal/mLdextrose 3.4 kcal/gamino acids 4 kcal/gNPC = ? kcal

Practice exercise (made-up values, not clinical guidance). Over 24 hours a patient receives 1000 mL of parenteral nutrition with final concentrations of 20% dextrose and 6% amino acids, plus 250 mL of 20% lipid emulsion (2 kcal/mL). Find the non-protein energy NPC in kcal per day. Round to the nearest whole number.

1000 mLdextrose 20%amino acids 6%lipid 250 mL · 2 kcal/mL
NPC = kcal/day

Answer key

  1. 1. V = 300 mL
  2. 2. V = 300 mL
  3. 3. R = 61 mL/h
  4. 4. n = 4
  5. 5. P = 145 g/day
  6. 6. NPC = 1180 kcal/day

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