血培养阳性病原菌种类及仪器报警时间分析

Journal of Chinese PLA Postgraduate Medical School(2010)

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Abstract
目的分析血培养阳性病原菌种类及仪器报警时间。方法回顾性收集BacT/Alert 3D全自动血培养仪对3035份血液培养的结果,分析血标本在需氧瓶和厌氧瓶中生长细菌的种类及仪器报警时间。结果3035例血培养标本中596份阳性,分离到608株细菌,55株念珠菌,其中革兰阳性细菌占59.1%,革兰阴性细菌占32.6%,念珠菌占8.3%。单纯需氧瓶培养的阳性率为16.2%,单纯厌氧瓶培养的阳性率为4.3%,同时进行需氧瓶及厌氧瓶培养的总阳性率为23.3%。对引起血液感染细菌,仪器在24h、48h和72h内阳性报警率分别为54.6%、84.5%和95.2%。结论同时进行需氧瓶及厌氧瓶培养能提高血培养阳性率。常见引起血液感染的细菌和念珠菌能在5d内得到仪器的阳性报警。
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Key words
Bacteria,Time,Colony Count,Microbial
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