Currently, most testing for MTB occurs using the AFB smear microscopy and culture tests. Although they are two separate tests, they are usually performed at the same time using the same specimen. The results for the two tests are delivered at different times; AFB microscopy results are reported within 24–48 hours whereas culture results are reported at 6–8 weeks. NAAT would be performed at the same time as AFB microscopy and culture, with results available in the same timeframe as the AFB results.
