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对４２例老年重症患者应用营养支持治疗。完全不能进食时给予全肠外营养（ＴＰＮ），ＴＰＮ所给氮量为（０．０８±０．０３）ｇｋｇ－１ｄ－１，非蛋白热卡为（９９．９６±１８．９）ｋＪｋｇ－１ｄ－１，其中脂肪占非蛋白热卡的３０％～６０％，同时注意电介质、维生素、微量元素和水的补充及基础病的治疗；能进少量饮食时给予适当静脉营养支持，以保证病人基本的营养需要。营养支持后大部分病人营养状况维持良好，疾病恢复，并给晚期肿瘤的治疗创造了条件，延长了生命。
42 elderly patients with severe nutritional support treatment. Total parenteral nutrition (TPN) was given at the time of complete ingestion. The amount of nitrogen given by TPN was (0.08±0.03)gkg-1d-1, and non-protein calorie was (99.96±18.9)kJkg- 1d-1, where fat accounts for 30% to 60% of non-protein calorie, and attention should be paid to the supplementation of dielectrics, vitamins, trace elements, and water, and the treatment of basic diseases; appropriate intravenous nutrition support can be given to a small amount of diet to ensure the patient Basic nutritional needs. After nutritional support, the nutritional status of most of the patients remained well, the disease recovered, and conditions for the treatment of advanced tumors were created, prolonging life.