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目的：探讨血清降钙素原(procalcitonin，PCT)检测在慢性支气管炎急性发作期患者诊治中的临床价值。方法回顾性分析2014年1月~2015年6月我院收治的76例慢性支气管炎急性发作期患者(观察组)血清PCT检测结果，并与我院同期50例健康体检者(对照组)血清PCT检测结果作对比分析。结果观察组血清PCT水平及血清PCT阳性率均明显高于对照组，差异有显著性(<0.05)。结论血清PCT具有更高的特异性和敏感性，在急性发作期的慢性支气管炎患者诊治中检测PCT具有较高的临床价值。“,”Objective The clinical value in the diagnosis and treatment of patients with acute exacerbation of chronic bronchitis in of serum procalcitonin (procalcitonin,PCT)test.Methods A retrospective analysis of January 2014~June 2015 in our hospital 76 cases of acute exacerbation of chronic bronchitis patients(study group)in serum PCT test results,and with the same period in our hospital 50 cases of healthy subjects(control group) Comparative analysis of serum PCT test results.Results The serum PCT levels and positive serum PCT were significantly higher,the difference was significant ( <0.05).Conclusion Serum PCT has a higher specificity and sensitivity of detection in the diagnosis and treatment of patients with acute exacerbation of chronic bronchitis in the PCT with high clinical value.