Why the test is performed
To detect genetic material from the Mycobacterium tuberculosis complex more rapidly than culture.
World time
Laboratory Testing Online / Microbiology
Tuberculosis Molecular Test (NAAT)
To detect genetic material from the Mycobacterium tuberculosis complex more rapidly than culture.Test profileMITuberculosis Molecular Test (NAAT)
Test and specimen
What is being examined?
- Test
- Tuberculosis Molecular Test (NAAT)
- Department
- Microbiology
- Typical sample or measurement
- Sputum or other clinically appropriate specimen
Before the test
Collection and isolation precautions must follow the clinical/public-health pathway; do not present at a routine clinic if infectious TB is suspected without calling ahead.
Clinical interpretation
Laboratory results should be interpreted by a qualified professional using the correct reference interval, method, symptoms, history and other findings. A normal or abnormal value rarely confirms or excludes a condition by itself.
What the test is used for
Supporting diagnosis of active tuberculosis and, for some assays, detecting selected drug-resistance markers.
How the test is performed
The specimen is processed in a controlled area, nucleic acid is extracted or released, and target sequences are amplified and detected with internal controls.
Conditions and diseases considered
Used for suspected pulmonary or extrapulmonary tuberculosis. A negative result may not exclude TB, especially with low organism burden.
Recommended further tests
Smear microscopy, mycobacterial culture and full susceptibility testing, chest imaging and public-health or specialist assessment.
Primary public reference
Continue with the official patient guide.
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