Methods:The plasma free carnitine(FC) concentrations were monitored in the undialyzed and dialyzed patients with CRF and normal subjects.

• 方法：选择慢性肾衰保守治疗患者以及尿毒症血透患者为实验对象,并以正常人作对照，检测血浆游离肉碱(FC)浓度。