Work out total parenteral nutrition instantly with clear inputs, formula shown and shareable results.
Builds a parenteral nutrition prescription from weight-based energy and protein targets, splitting the non-protein energy between lipid and dextrose.
TPN macronutrients
Total kcal = weight x kcal/kg; protein g = weight x g/kg (4 kcal/g); lipid g = lipid kcal / 9; dextrose g = dextrose kcal / 3.4
Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.
Parenteral dextrose is monohydrate, which yields 3.4 rather than the 4 kcal/g of dietary carbohydrate.
Glucose oxidation capacity, usually about 4 to 5 mg/kg/min in adults, above which lipogenesis and hyperglycaemia occur.