Sputum Smear. 108592892 Sputum smear microscopy remains the most widely used test for diagnosing pulmonary TB in resource-limited settings. This test involves staining sputum samples with special ...

Tuberculosis (TB) is an infectious disease ... 20 bacteria per millilitre of unprocessed sputum sample in 30 minutes. Conventional culture-based tests, by comparison, can detect about 10–100 ...

Evaluation of: Tortoli E, Russo C, Piersimoni C et al. Clinical validation of Xpert MTB/RIF for the diagnosis of extrapulmonary tuberculosis. Eur. Respir. J. doi:10. ...

Children tend to develop pauci-bacillary TB and are rarely sputum smear positive. M. tuberculosis culture is more sensitive than smear microscopy, but it remains an insensitive test (culture ...