Methods:31 chronic renal failure patients and 19 healthy subjects were selected in this investigation to study the changes of acetylcholinesterase activity. The activity of acetylcholinesterase in serum was determined with DTNB method.

• 方法 :用微量 DTNB法测定 31例尿毒症患者及 1 9例健康对照者的血浆胆碱酯酶活力 ,判断其与肾功能损伤的相关性。