Comparison of various techniques of concentration of acid fast bacilli in bronchial aspirates
Gutpa, P.R.; Purohit, S.D.; Sisodia, R.S.; Sarkar, S.K.; Sharma, T.N. and Nanavati, V. (1984) Comparison of various techniques of concentration of acid fast bacilli in bronchial aspirates. Indian Journal of Tuberculosis, 31 (4). pp. 161-163.
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Bronchial aspirates of 100 pulmonary tuberculosis patients with negative sputum smears were examined by direct microscopy, concentration technique, a modified flotation technique and direct smear of centrifuged deposit. Acid fast bacilli were seen in 5,40,42, & 45 smears by various techniques respectively. Culture of the aspirates isolated Mycobacteria in 69 patients. It is suggested that smear of bronchial aspirates should be made from its centrifuged deposits. Where the smear is negative, the aspirates should also be cultured.
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