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降钙素原的临床应用进展

Clinical Misdiagnosis & Mistherapy(2015)

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Abstract
降钙素原(procalcitonin, PCT)是降钙素(CT, 32AA)的前肽,在严重细菌、真菌、寄生虫感染及脓毒症、多脏器功能衰竭时其血浆水平常升高,可反映全身炎症反应的活跃程度. PCT对细菌感染和脓毒症具有早期诊断价值,对细菌感染和非细菌感染具有鉴别诊断作用,对于鉴别革兰阳性菌和革兰阴性菌也有一定的作用. 此外,PCT亦是诊断脓毒症的特异指标,并可监测脓毒症的治疗效果及预后,动态监测PCT浓度可及早有针对性选用抗生素或调整治疗方案,对提高危重患者的抢救成功率有重要意义.
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