2023年9月15日 · MTB PCR, or Mycobacterium tuberculosis Polymerase Chain Reaction, is a molecular diagnostic technique that amplifies and detects specific DNA sequences of Mycobacterium tuberculosis, the bacterium responsible for tuberculosis (TB), allowing for its rapid and sensitive detection in clinical samples.

The Xpert MTB/RIF assay is a test that helps to rapidly diagnose TB disease and identify drug resistance. The test simultaneously detects Mycobacterium tuberculosis complex (MTBC) and resistance to rifampin (RIF) in less than 2 hours.

For sputum specimens, the recommended test is MTBXS / Mycobacterium tuberculosis complex, Molecular Detection and Rifampin Resistance, PCR, Sputum. MTBXS provides rapid resistance information to aid with patient management.

2025年1月31日 · Latent TB infection is diagnosed if the person has a positive result from a TB blood test or skin test and a medical evaluation does not indicate TB disease. TB disease is diagnosed by medical history, physical examination, chest x-ray, and other laboratory tests, including culture.

2016年12月8日 · Several factors determine the probability of Mtb transmission: (1) infectiousness of the source patient—a positive sputum smear for acid-fast bacilli (AFB) or a cavity on chest radiograph being strongly associated with infectiousness; (2) host susceptibility of the contact; (3) duration of exposure of the contact to the source patient; (4 ...

Organisms from culture are identified by use of real-time polymerase chain reaction (PCR) and/or MALDI-TOF and/or nucleic acid sequencing. Result Turnaround Time 48 - 56 days

Panel includes PCR testing to detect M. tuberculosis complex isolates and determine possible resistance to rifampin treatment. Test may be ordered for client-processed specimens. Refer to specimen requirements.

The PCR assay targets a unique sequence within the katG gene, which is present in members of the M tuberculosis complex. In addition, the assay can detect genotypic resistance to isoniazid mediated by mutations in the katG target, when present.

The PCR assay targets a unique sequence within the katG gene, which is present in members of the M tuberculosis complex. In addition, the assay can detect genotypic resistance to isoniazid mediated by mutations in the katG target, when present.

The Xpert MTB/RIF assay integrates sample decontamination, hands-free operation, on-board sample processing, and ultra-sensitive hemi-nested PCR for the simultaneous detection of MTB and RIF resistance, either in expectorated sputum or …