MTB DNA PCR (SEMEN)
Also Known As
Test Parameters Included
- Mycobacterium tuberculosis DNA Concentration (qualitative report: Detected / Not Detected) by real-time PCR targeting IS6110 insertion sequence
- Pathologist Microbiology Remark - correlated with clinical presentation of male genital TB and infertility workup
Department
Methodology
Sample Required
Preparation
Schedule Report
24 hours
Emergency Report
Yes
Frequently Asked Questions
Why is MTB PCR done on semen?
It detects Mycobacterium tuberculosis DNA in semen to diagnose genital tuberculosis, which is an important cause of male infertility, epididymal obstruction, and seminal tract involvement in India.
Is fasting required for this test?
No, fasting is not required for semen PCR. The sample is collected independently of meals.
How is the semen sample collected?
Semen is collected by masturbation into a sterile, wide-mouthed container after 2–5 days of abstinence. The sample should be delivered to the lab within 1 hour of collection.
What does a positive MTB PCR result mean?
A positive result indicates the presence of M. tuberculosis DNA in the semen, suggesting genitourinary tuberculosis. Clinical correlation and further evaluation by a urologist or infectious disease specialist are recommended before starting anti-TB treatment.
What is the turnaround time for this test?
The report is typically available within 24–48 hours. Verified PDF reports can be accessed via www.drpatholab.in or WhatsApp/Email.
Can previous antibiotic or anti-TB use affect the result?
Yes, prior anti-tubercular therapy may reduce bacterial load and cause a false-negative PCR result. Inform your doctor about any medications taken before sample collection.
Test Description
Test Code
M46
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