Diagnosis

Urine Only Marginally Useful in Identifying TB

Published in TB and Outbreaks Week, February 26th, 1996

Only between 5 and 8 percent of pulmonary tuberculosis patients have positive urine cultures for Mycobacterium tuberculosis, suggesting that urine evaluation is rarely useful in the diagnosis of TB.

Newly developed techniques for the detection of Mycobacterium tuberculosis, such as genomic detection by polymerase chain reaction (PCR) and detection of mycobacterial antigens by immunoassays, will modify the diagnostic approach to tuberculosis. Most of these techniques, however, are not yet routinely available, and sputum remains the most common clinical specimen submitted for conventional microbiology study.

In this retrospective study...

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Source: TB and Outbreaks Week (1996-02-26)

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