GeneXpert

Xpert MTB/RIF: Introduction, Principle, Procedure, Result-Interpretation, Uses, and Keynotes

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GeneXpert® Xpert® MTBRIF Test Result- MTB Detected (Very Low) and Rifampicin Resistance Not Detected

Introduction The Xpert MTB/RIF assay is an automated, cartridge-based molecular test used to detect Mycobacterium tuberculosis (MTB) and rifampicin (RIF) resistance, the most potent first-line anti-TB drug. Endorsed by the WHO in 2010, the Xpert MTB/RIF assay revolutionized TB diagnosis by providing results in less than two …

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Xpert MTB/RIF Ultra: Introduction, Principle, Procedure, Result-Interpretation, Uses, and Keynotes

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GeneXpert Dx System software interface displaying a completed diagnostic result for an Xpert MTB-RIF Ultra assay

Introduction Xpert MTB/RIF Ultra is an automated diagnostic test designed for the rapid and simultaneous detection of Mycobacterium tuberculosis (MTB) and resistance to rifampin (RIF). It is a second-generation assay developed by Cepheid to provide significantly higher sensitivity than the original Xpert MTB/RIF, particularly for …

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Xpert MTB-XDR: Introduction, Principle, Procedure, Result-Interpretation, Uses, and Keynotes

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The image shows a GeneXpert software interface displaying an Xpert MTB/XDR test result with M. tuberculosis (MTB) detected and a specific drug resistance profile.Key Findings:MTB DETECTED: Positive for Mycobacterium tuberculosis complex.Low FLQ Resistance DETECTED: Indicates low-level resistance to fluoroquinolones (e.g., levofloxacin or moxifloxacin).Resistance NOT DETECTED: No mutations were found for isoniazid (INH), amikacin (AMK), kanamycin (KAN), capreomycin (CAP), or ethionamide (ETH).This result is consistent with a pre-XDR-TB diagnosis, as there is resistance to fluoroquinolones but susceptibility to second-line injectables.

Introduction The Xpert MTB/XDR assay is an advanced molecular diagnostic tool designed by Cepheid to rapidly detect Mycobacterium tuberculosis complex (MTBC) and its resistance to multiple first- and second-line drugs. Launched in 2021, it is categorized as a “low complexity” automated nucleic acid amplification test …

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TB PCR for Sputum: Introduction, Test Result, Unit, Normal Range, Assaying Method, Clinical Significance, and Keynotes

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TB PCR for Sputum-Mycobacterium tuberculosis Detected but Rifampicin Resistance not Detection

Introduction TB PCR (polymerase chain reaction) for sputum is a laboratory test used in the diagnosis of tuberculosis (TB). It is a molecular diagnostic technique that detects the presence of Mycobacterium tuberculosis (the bacterium that causes TB) DNA in sputum samples. Traditional methods of diagnosing …

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GeneXpert Test For Tuberculosis: Introduction, Principle, Test Requirements, Test Procedure, Result -Interpretation, Advantages, Disadvantage, and Keynotes

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GeneXpert Test For Tuberculosis-Mycobacterium tuberculosis (MTB) Detected High

Introduction of GeneXpert Test GeneXpert test is a molecular test for tuberculosis diagnosis by detecting the presence of  Mycobacterium tuberculosis (bacteria), as well as testing for resistance to the drug rifampicin. Principle of GeneXpert Test GeneXpert test is a highly sensitive and specific test for tuberculosis(TB) diagnosis that detects DNA sequences …

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Laboratory Instruments and Equipment: Introduction, Name List, and Short Description

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Laboratory Instruments and Equipment

Introduction of Laboratory Instruments and Equipment Laboratory Instruments and Equipment make laboratory work easy and fast. Here we discuss the instruments and equipment of the Department of Pathology and Laboratory Medicine that includes Clinical Haematology, Clinical Biochemistry, Histopathology and Cytology, Clinical Microbiology and Immunology, Blood …

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