MTB DNA PCR (SYNOVIAL FLUID)
Also Known As
Test Parameters Included
- Mycobacterium tuberculosis DNA Detection (Qualitative) - PCR amplification of MTB-specific gene targets in synovial fluid
- Pathologist Molecular Biology Remark - correlated with clinical and radiological findings for tuberculous arthritis
Department
Methodology
Sample Required
Preparation
Schedule Report
24 hours
Emergency Report
Yes
Frequently Asked Questions
What does MTB DNA PCR on synovial fluid detect?
It detects Mycobacterium tuberculosis genetic material in joint fluid, helping diagnose tuberculous arthritis or septic arthritis caused by TB.
When is this test recommended?
It is recommended for patients with chronic monoarthritis, especially in TB-endemic regions like India, when tuberculous arthritis is suspected clinically or radiologically.
How is the synovial fluid sample collected?
A trained phlebotomist or clinician collects synovial fluid via arthrocentesis (joint aspiration) into a sterile container, preferably before starting anti-TB treatment.
Is this test faster than culture?
Yes, PCR provides results within 24 hours compared to culture which can take 2–8 weeks, enabling earlier initiation of targeted anti-TB therapy.
Can the test give a false-negative result?
Yes, low bacterial load, prior antibiotic or anti-TB use, or improper sample collection may lead to false-negative results; clinical correlation is essential.
How to access the report?
Verified PDF report available within 24–48 hours via www.drpatholab.in or WhatsApp/Email.
Test Description
Test Code
M44
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