Culture AFB (Mycobacterium) Rapid with PNB Test
Short Name: AFB Rapid PNB Test
Also known as: AFB Culture with PNB, Mycobacterium Culture Rapid PNB Test
Culture AFB (Mycobacterium) Rapid with PNB Test test available at DNA Labs India for ₹1,966. Uses Rapid Automated Fluorescent AFB Culture, Automated AFB Identification by PNB Test on Multiple types: Blood/Bone Marrow, CSF, Pus/Body fluids, Tissue, Swabs, Sputum, Urine, Gastric Lavage samples. Results in Interim reports in 14 days and 4 weeks; final report in 6 weeks. PNB test results available 10 days after positive AFB culture.. Free home collection in 300+ cities across India.
🩺 Medically Reviewed By
Dr SHAILAJA RAGHUNATH MURDESHWAR
Consultant Physician · Reg: 8052
Last reviewed: September 7, 2026
Overview
To diagnose tuberculosis infection and identify antibiotic resistance patterns of Mycobacterium species, guiding effective treatment decisions.
- Test Code
- 389
- Price
- ₹1,966
- Sample Type
- Multiple types: Blood/Bone Marrow, CSF, Pus/Body fluids, Tissue, Swabs, Sputum, Urine, Gastric Lavage
- Result Time
- Interim reports in 14 days and 4 weeks; final report in 6 weeks. PNB test results available 10 days after positive AFB culture.
- Fasting Required
- No
- Method
- Rapid Automated Fluorescent AFB Culture, Automated AFB Identification by PNB Test
Sample Collection
For Gastric Lavage specimens, overnight fasting is mandatory. Inform your healthcare provider about any medications or recent treatments.
Method: By healthcare professional
Laboratory Analysis
Sample collection will be performed by a trained healthcare professional using sterile techniques to avoid contamination.
Report Delivery
Samples are shipped refrigerated to the laboratory. Ensure proper documentation and follow-up for report delivery.
Timeline: Interim reports in 14 days and 4 weeks; final report in 6 weeks. PNB test results available 10 days after positive AFB culture.
Patient Instructions
About This Test
Who Should Get This Test
To diagnose tuberculosis infection and identify antibiotic resistance patterns of Mycobacterium species, guiding effective treatment decisions.
How to Prepare
- Blood/Bone Marrow: Collect 8 mL (5 mL min.) in Myco F/Lytic bottle, mix by gentle inversion 8-10 times, ship at 18-22°C.
- CSF: Collect 2 mL (1 mL min.) in Red Top tube or sterile screw-capped container, ship refrigerated.
- Pus/Body fluids: Submit as much as possible (1 mL min.) in sterile screw-capped container, ship refrigerated.
- Tissue/Swabs: Submit in sterile normal saline in sterile screw-capped container, ship refrigerated.
- Sputum/Urine: Submit 2 spot morning samples, 5-10 mL sputum or 10 mL urine in sterile screw-capped container, ship refrigerated.
- Gastric Lavage: Submit 5-10 mL (2 mL min.) in sterile screw-capped container, ship refrigerated. Overnight fasting mandatory.
Doctor's Notes
Reviewed by Dr SHAILAJA RAGHUNATH MURDESHWAR — MBBS, MD (General Medicine) · Reg. No. 8052
"This test is crucial for early TB detection and guiding treatment to combat drug resistance."
Last medically reviewed: September 7, 2026
Test Parameters & Specifications
Sample Stability
- Insufficient sample volume
- Contaminated or improperly stored samples
- Use of non-sterile containers
- Samples without proper documentation
Understanding Your Results
AFB Culture Negative
No Mycobacterium growth detected; TB unlikely if symptoms persist, consider repeat testing or other diagnostics.
AFB Culture Positive with M. tuberculosis
Active TB infection confirmed; further drug sensitivity testing recommended.
PNB Susceptible
Mycobacterium species sensitive to PNB-based antibiotics; standard treatment may be effective.
PNB Resistant
Mycobacterium species resistant to PNB; alternative antibiotics required to avoid treatment failure.
Consult a doctor immediately if you have symptoms of TB, receive a positive test result, or if treatment based on results is not improving your condition.
Limitations
- ⚠Long turnaround time up to 6 weeks
- ⚠May not detect all mycobacterial species
- ⚠Requires skilled laboratory personnel for accurate interpretation
- ⚠Not suitable for rapid point-of-care testing
Risks & Considerations
- ●Minimal risks from sample collection, such as slight discomfort or bruising
- ●Rare chance of infection at collection site
- ●No significant risks from the test itself
Interfering Factors
- ●Contamination of sample during collection
- ●Prior antibiotic therapy affecting bacterial growth
- ●Improper sample storage or transport
- ●Use of incorrect sample type or volume
Compare With Similar Tests
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| Comparison | Culture AFB (Mycobacterium) Rapid with PNB Test |
Frequently Asked Questions
What is the Culture AFB Rapid PNB test?
How much does the test cost?
What samples are needed for the test?
Is fasting required for the test?
How long does it take to get results?
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Is home sample collection available?
Can the test detect all types of TB?
What is the PNB test?
Are there any risks associated with the test?
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What should I do if I have symptoms of TB?
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