目的：研究降钙素原(PCT)在血液透析患者导管相关性血行感染（CRBSI）中的应用价值。方法：62例怀疑导管相关性血行感染的血液透析患者，采集血常规、C反应蛋白(CRP)、降钙素原血样后拔除导管，同时留取血培养及导管标本。结果：CRBSI组和非CRBSI组拔管时的血清PCT水平分别为7.16±5.84μg/L和0.97±1.44μg/L（P<0.001），而血白细胞计数（WBC）值及CRP值则无明显差别。结论：PCT在早期诊断CRBSI方面具有较高的临床价值。

Objective: To study the value of procalcitonin for catheter related bloodstream（CRBSI）infection in hemodialysis patients. Methods: Blood samples of 62 hemodialysis patients who suspected catheter related bloodstream infection were obtained for procalcitonin level、c-reactive protein level、hemoculture and blood routine examination, catheter were also obtained for culture. Results: The procalcitonin level of Patients with CRBSI and without CRBSI were 7.16±5.84μg/L and 0.97±1.44μg/L（P<0.001）, there is no significant difference Between Patients with CRBSI and without CRBSI in the level of white blood cells and C-reactive protein. Conclusions: PCT was a valuable early diagnostic parameter for CRBSI.