Mycobacterium tuberculosis complex PCR, tissue
- 87556 - QTY (1)
- 87496 - QTY (1)
- M. tuberculosis PCR, tissue
- TB PCR, tissue
University of Washington Molecular Microbiology
Mon - Fri
2 - 3 weeks
|Polymerase Chain Reaction (PCR)|
Specimen source must be included.
Although an acid fast smear can provide an important clue to the nature of the causative agent, a positive result does not necessarily indicate the presence of M. tuberculosis complex. The presence of acid fast bacilli in clinical specimens can be simply due to the growth of common water contaminants such as M. chelonae and M. fortuitum. On the other hand, a negative smear does not rule out the presence of M. tuberculosis complex at low pathogen load. The use of PCR to detect this DNA extracted directly from clinical specimens facilitates the identification of these pathogens.