Cultured AFB Antitubercular DST Linezolid Test
Also known as: AFB DST Linezolid, Linezolid Susceptibility Test for TB, Antitubercular Sensitivity for Linezolid
Cultured AFB Antitubercular DST Linezolid Test test available at DNA Labs India for ₹4,500. Uses Automated Fluorescent on Pure growth of Mycobacterium tuberculosis complex on appropriate media samples. Results in Results are typically available within 21 days of sample receipt.. Free home collection in 300+ cities across India.
🩺 Medically Reviewed By
Dr Kothari Ramesh Shantilal
Consultant Microbiologist · Reg: 27670
Last reviewed: September 7, 2026
Overview
To determine the susceptibility of Mycobacterium tuberculosis to linezolid, aiding in the selection of effective antibiotics for tuberculosis treatment.
- Test Code
- 440
- Price
- ₹4,500
- Sample Type
- Pure growth of Mycobacterium tuberculosis complex on appropriate media
- Result Time
- Results are typically available within 21 days of sample receipt.
- Fasting Required
- No
- Method
- Automated Fluorescent
Sample Collection
No special preparation required. Inform your healthcare provider about any current medications or antibiotics.
Method: Culture-based collection
Laboratory Analysis
Collect a sputum sample by deep coughing into a sterile container. A healthcare professional will guide you if needed.
Report Delivery
Ensure the sample is properly labeled and stored refrigerated. Avoid contamination and transport to the laboratory promptly.
Timeline: Results are typically available within 21 days of sample receipt.
Patient Instructions
About This Test
Who Should Get This Test
To determine the susceptibility of Mycobacterium tuberculosis to linezolid, aiding in the selection of effective antibiotics for tuberculosis treatment.
How to Prepare
- Collect sputum sample early in the morning for best yield
- Use the sterile container provided by the lab
- Avoid eating, drinking, or smoking before collection
- If home collection is booked, ensure sample is refrigerated until pickup
Doctor's Notes
Reviewed by Dr Kothari Ramesh Shantilal — MBBS, MD (Microbiology) · Reg. No. 27670
"The Cultured AFB DST Linezolid test is vital for identifying effective antibiotics in multidrug-resistant TB cases, guiding personalized treatment plans."
Last medically reviewed: September 7, 2026
Test Parameters & Specifications
Sample Stability
- Non-sterile or leaking container
- Insufficient sample volume for culture
- Improper labeling or missing patient information
- Visible contamination or mixed flora
Understanding Your Results
Sensitive
Linezolid is effective against the TB strain and can be included in the treatment regimen.
Intermediate
Linezolid may have reduced efficacy; consider higher doses or alternative antibiotics with caution.
Resistant
Linezolid is not effective; alternative antibiotics should be selected based on further testing.
If you experience persistent TB symptoms, have a positive TB test, or if your current TB treatment is not improving your condition.
Limitations
- ⚠Test requires a pure culture of Mycobacterium tuberculosis, which can take time
- ⚠Results may take up to 21 days, delaying treatment decisions
- ⚠Not effective for non-tuberculous mycobacteria infections
Risks & Considerations
- ●Minimal risk from sample collection, such as minor discomfort from coughing or throat irritation.
Interfering Factors
- ●Contamination of sample during collection or transport
- ●Improper sample storage leading to bacterial death
- ●Use of antibiotics prior to sample collection affecting culture results
Compare With Similar Tests
| Test | Cultured AFB Antitubercular DST Linezolid Test | Sputum AFB Smear | TB PCR Test | Mantoux Tuberculin Skin Test |
|---|---|---|---|---|
| Comparison | Cultured AFB Antitubercular DST Linezolid Test |
Frequently Asked Questions
What is the Cultured AFB Antitubercular DST Linezolid test?
Why is this test important for tuberculosis treatment?
How is the sample collected for this test?
What does the test cost?
How long does it take to get results?
What do the results indicate?
Is home sample collection available?
Are there any risks associated with the test?
How should I prepare for the test?
What if my result is resistant to linezolid?
Can this test detect other antibiotics' effectiveness?
Where can I get this test done in India?
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