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在蘇聯結核病設施中最廣泛應用的結核桿菌检出法為胃內容的檢查。现在此法又經改善:用在病人空腹時採取的胃洗滌液實施浮游法檢查。此法可能對於無痰的疑似結核病人用化驗方法下早期的診斷。和普通細菌學檢查法的檢出率(為20～33%)比起來浮游法可得到更多的陽性成績。浮游法的操作簡便,可以很快地獲得結果,有些学者認為本法的效果不次於培養和動物實驗
The most widely used tuberculosis detection method in Soviet tuberculosis facilities is the examination of stomach contents. This method has now been improved: floatation tests are performed using gastric washing fluids taken when the patient is fasting. This method may be useful for the early diagnosis of innocent suspected tuberculosis patients. Compared with the detection rate of the common bacteriological examination (from 20 to 33%), more positive results can be obtained from the floating method. The floatation method is easy to operate and can quickly obtain results. Some scholars believe that the effect of this method is not inferior to that of culture and animal experiments.