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临床标本军团菌分离方法研究 被引量:3

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摘要 目的建立临床痰液标本军团菌分离培养标准检验方法,提高培养阳性率。方法采集50例新鲜痰液标本分为两组,一组直接预处理后进行培养,另一组加入标准菌株后再预处理及培养。预处理采用液化处理,然后分别采用直接接种、酸处理或热处理后再接种军团菌选择性BCYEα-DGVPC培养基,观察菌落生长情况。根据军团菌生长缓慢及菌落形态和在缺乏L-半胱氨酸的平板、血平板上不生长的特点作初步判断、生化反应及PCR法确证。结果 50例未加菌的痰液均未分离出军团菌;50例加有军团菌的模拟痰标本直接接种的检出率为58%,其中酸处理的标本检出率为70%,热处理的标本检出率为66%。3种培养方法进行比较,单独的热处理与直接处理相比较差异有统计学意义(P=0.261),单独的酸处理与直接处理相比较差异有统计学意义(P=0.003),而酸处理和热处理培养阳性结果比较并不具有一致性。结论酸处理和热处理2种方法均可以提高军团菌检出率,其中酸处理可以显著提高军团菌检出率。
出处 《国际检验医学杂志》 CAS 2010年第6期593-594,共2页 International Journal of Laboratory Medicine
基金 国家标准化管理委员会项目:制订<军团菌检测方法>国家标准(20081021-T-361) 广东省科技计划项目(2008B030301368)
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参考文献7

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共引文献21

同被引文献21

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