各期肾衰竭病人的蛋白代谢均相当紊乱。尿毒症患者多有分解代谢过度、消瘦而且蛋白营养缺乏。这种病人的肌肉蛋白分解增多,而合成减少。 急性肾衰竭的发病率与死亡率同病人的分解代谢过度成正比。因此,为改善病人的氮平衡,加速肾功能的恢复并降低发病率和死亡率,至关重要的是增加氮摄入。每日至少需摄入蛋白或氨基酸1 All patients with renal failure protein metabolism are quite disorder. Uremic patients often have excessive catabolism, weight loss and protein nutrition deficiencies. This patient’s muscle protein degradation increased, while reducing the synthesis. The incidence and mortality of acute renal failure are directly proportional to the patient’s catabolism. Therefore, it is of crucial importance to increase nitrogen uptake in order to improve the patient’s nitrogen balance, accelerate renal function recovery and reduce morbidity and mortality. Daily intake of at least protein or amino acid 1