[Practical management of parenteral nutrition (author's transl)].

Three different plans of parenteral nutrition are available: (1) postoperative water and electrolyte substitution; (2) basic parenteral nutrion; (3) total parenteral nutrition. The decision for one of these plans depends on the duration of necessary parenteral support and on the patient's situation. ad 1: solution with electrolytes, 40 ml/kg body weight/day ad 2: solution with electrolytes, amino acids (25 g/day) and carbohydrates (125 g/day) in a 75 kg patient ad 3: solution with electrolytes, amino acids (1 g/kg body weight/day) and carbohydrates (5 g/kg body weight/day).