This version was machine-translated from German and has not been medically reviewed. The authoritative version is the German version.
Parenteral Nutrition Calculator
Fluid, glucose, amino acids, lipids → composition, GIR, energy, osmolarity
About this calculator
Calculates from weight, total fluid, glucose concentration and amino acid and lipid dose the volumes and infusion rates, the glucose infusion rate, the energy intake (total and non-protein) and the estimated osmolarity of the aqueous solution.
Frequently asked questions
How is the glucose infusion rate calculated?
GIR in mg/kg/min = glucose concentration in percent × infusion rate in ml/h divided by (6 × weight in kg). When given in ml/kg/day: percent × 10 × ml/kg/day divided by 1440.
What formula is behind osmolarity?
The estimation formula of Pereira-da-Silva et al. (JPEN 2004): amino acids (g/l) × 8 + glucose (g/l) × 7 + sodium (mEq/l) × 2 + phosphorus (mg/l) × 0.2 − 50. Above about 900 mOsm/l, central venous access is generally recommended.