降钙素原在免疫抑制个体细菌感染诊断中的应用

The application of procalcitonin in the diagnosis of bacterial infection of the immunosuppression individu-als

血清降钙素原被认为是诊断细菌感染最敏感和高特异性指标，近年来在临床中逐渐发现在一些免疫系统性疾病和长期应用免疫抑制剂的患者中，降钙素原诊断细菌感染的敏感性不如C反应蛋白高。该文就降钙素原是否在诊断免疫抑制个体细菌感染中仍然具有较高敏感性和特异性作一综述。

Serum procalcitonin（PCT） is considered to be the most sensitive and high specificity index. In recent years,it is gradually found that C-reactive protein sensitivity is much higher than PCT in the diagnosis of bacterial infection of those patients with immune system diseases and application of immune inhibitors. There-fore, this paper summarizes whether the PCT is still of higher sensitivity and specificity in the diagnosis of bacte-rial infection of the immunosuppression individual or not.