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/mL1500 kcal/day4 × ? mL4× per day

Practice exercise (made-up values, not clinical guidance). A patient on bolus tube feeding needs 1500 kcal a day from a formula that provides 1.5 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.

1500 kcal/day1.5 kcal/mL4 boluses
V = mL
2.Easy
1.5 kcal/mL1200 kcal/day? mL/h24 h/day

Practice exercise (made-up values, not clinical guidance). A patient needs 1200 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.

1200 kcal/day1.5 kcal/mL24 h
R = mL/h
3.Medium
70 kg177 cmwomanIBW (Devine)%IBW = ?

Practice exercise (made-up values, not clinical guidance). A woman is 177 cm tall and weighs 70 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.

177 cm70 kgwoman
%IBW = %
4.Medium
63 g/L1.2 g/kg/day60 mL/h74 kg16 h/day7 g/scoopn = ?

Practice exercise (made-up values, not clinical guidance). A 74 kg patient needs 1.2 g of protein per kg a day. The tube feed contains 63 g of protein per litre and runs at 60 mL/h for 16 hours a day. A protein powder supplies 7 g of protein per scoop. How many scoops n a day are needed to cover the shortfall? Round up to a whole scoop.

74 kg1.2 g/kg/day63 g/L60 mL/h · 16 h7 g/scoop
n =
5.Hard
24 hdextrose 17.5%1800 mLamino acids 6%1800 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 1800 mL of parenteral nutrition with final concentrations of 17.5% dextrose and 6% 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.

1800 mLdextrose 17.5%amino acids 6%lipid 500 mL · 2 kcal/mL
NPC : N =
6.Hard
24 hdextrose 25%1000 mLamino acids 6%1000 mLlipid 10%250 mL · 1.1 kcal/mLN = protein/6.25NPC : N = ? : 1

Practice exercise (made-up values, not clinical guidance). Over 24 hours a patient receives 1000 mL of parenteral nutrition with final concentrations of 25% dextrose and 6% amino acids, plus 250 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.

1000 mLdextrose 25%amino acids 6%lipid 250 mL · 1.1 kcal/mL
NPC : N =

Answer key

  1. 1. V = 250 mL
  2. 2. R = 33 mL/h
  3. 3. %IBW = 103 %
  4. 4. n = 5
  5. 5. NPC : N = 120
  6. 6. NPC : N = 117

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