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Year : 1990  |  Volume : 8  |  Issue : 3  |  Page : 84-86

Evaluation Of Simplified Concentration Method For Detection Of Tubercle Bacilli In Sputum Samples



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B Khurana


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Sputum samples of 3000 pulmonary tuberculosis patients were evaluated by simplified concentration method. 1000 samples were examined by three methods: Direct smear, Petroff’s concentration method and Simplified concentration method. Acid fast bacilli were present in 10%, 14.5% and 14.8% by various techniques respectively. Remaining 2000 samples were examined only by two methods: Direct smear and Simplified concentration methods and positivity was 13.95% and 17.95% respectively. Cultures of 500 sputum samples isolated mycobacteria in 80 patients. Simplified technique yielded better results of acid fast bacilli and was superior to either direct smear examination or examination of smears by Petroff’s concentration method.






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2004 - Indian Journal of Medical Microbiology
Published by Wolters Kluwer - Medknow

Online since April 2001, new site since 1st August '04