论文部分内容阅读
目前,在发展中国家中对肺结核的微生物学快速诊断仅采用痰标本抗酸染色直接镜检,但这种方法敏感性极低,故急需改进肺结核的快速诊断方法。直接镜检通常将痰液化和离心浓集细菌,以增加其敏感性。本文作者评价了三种液化痰的方法:即次氯酸钠法、氢氧化钠法和二硫苏糖醇法。发现用次氯酸钠消化痰液后,分支杆菌小球团沉淀所需离心力相对较低。在发展中国家一般很少用这种方法,也没有对其进行过评价。作者在埃塞俄比亚和印度的三个检测中心对用次氯酸钠处理废液后涂片镜检与直接痰液涂片镜检进行了比较。
At present, the rapid diagnosis of tuberculosis in developing countries in microbiology using direct sputum acid-fast staining, but this method is extremely low sensitivity, so the urgent need to improve the rapid diagnosis of tuberculosis. Direct microscopy usually phlegm liquefies and centrifuged to concentrate bacteria to increase its sensitivity. The authors evaluated three methods of liquefaction sputum: the sodium hypochlorite method, the sodium hydroxide method and the dithiothreitol method. Found that with sodium hypochlorite digestion sputum, the centrifugal force required for the pellet pellet is relatively low. In developing countries, this method is seldom used and not evaluated. The authors compared smear microscopy with direct sputum smear microscopy after treatment of waste with sodium hypochlorite at three testing centers in Ethiopia and India.