MTB DNA PCR (SPUTUM)
Also Known As
Test Parameters Included
- Mycobacterium tuberculosis DNA Concentration (qualitative report: Detected / Not Detected)
- Pathologist Molecular Microbiology Remark — interpreted against clinical presentation and smear/culture correlation
Department
Methodology
Sample Required
Preparation
Schedule Report
24 hours
Emergency Report
Yes
Frequently Asked Questions
What does MTB DNA PCR detect in sputum?
It detects the genetic material (DNA) of Mycobacterium tuberculosis, the bacterium that causes tuberculosis, providing rapid and accurate diagnosis.
How is the sputum sample collected?
You must provide 2 ml of deep cough sputum, not saliva. The sample is collected early morning by coughing deeply after rinsing your mouth with water.
How long does it take to get results?
Results are typically available within 24 hours at Dr. Patho Labs & Diagnostics.
Is this test better than a sputum smear test?
Yes, MTB DNA PCR is significantly more sensitive and specific than smear microscopy. It can detect TB even when the bacterial load is low and cannot be seen under the microscope.
Can this test detect drug-resistant TB?
Depending on the specific PCR assay used, it may also detect rifampicin resistance genes, helping guide initial treatment decisions for drug-resistant tuberculosis.
Do I need to fast before this test?
No, fasting is not required for sputum collection. Just provide a good quality sample as instructed by the phlebotomist or collection staff.
Test Description
Test Code
M23
- High-end laboratory & medical equipment.
- Outstanding doctor team.
- Personalized care & high-quality service.
- Tailormade health screening packages.