TPN Calculator

Calculate total parenteral nutrition (TPN) requirements including calories, protein, dextrose, and lipids for hospitalized patients.

Patient Information

years

Solution Concentrations

Total Daily Calories

2125 kcal

BMR: 1518 kcal + stress factor

🥩Protein
84 g/day
🍬Dextrose
368 g/day
🧈Lipids
60 g/day
📈GIR
3.65 mg/kg/min

Caloric Distribution

Protein: 336 kcal (16%)

Carbohydrates: 1252 kcal (59%)

Lipids: 537 kcal (25%)

Estimated Volumes

Dextrose 25%: 1473 mL

Amino Acids 10%: 840 mL

Lipids 20%: 298 mL

Total: 2611 mL

Warnings

  • Dextrose exceeds recommended maximum (5 g/kg/day)

TPN Guidelines

Maximum Rates

  • Dextrose: 5 g/kg/day or GIR <5 mg/kg/min
  • Lipids: 2.5 g/kg/day
  • Protein: 2.0-2.5 g/kg/day (critical illness)

Monitoring

  • Blood glucose every 4-6 hours initially
  • Electrolytes daily
  • Triglycerides weekly
  • LFTs weekly