QuantiFERON® TB Gold Plus (IGRA) – Focus TB by Thyrocare
Blood test (IGRA) that measures interferon-gamma response to TB-specific antigens. This is a screening/assessment test and must be interpreted with clinical evaluation.
Special Price: ₹2,780 MRP: ₹5,560 (Flat 50% Off)
Also known as: TB IGRA | Test type: Interferon-Gamma Release Assay (IGRA) | Processing: Thyrocare Central Lab
Book Now, Pay Later
Home/office sample collection is scheduled after order confirmation for the beneficiary’s available slot.
Focus TB is a TB-testing category under Thyrocare’s lab processing ecosystem.
Quick Summary
What you get
- QuantiFERON® TB Gold Plus (QFT-Plus) qualitative report
- Tube responses and final interpretation: Positive / Negative / Indeterminate
- Secure digital report delivery
Key logistics
- Sample: Whole blood (Lithium Heparin), two vials
- Fasting: Not required
- Reporting time: 56 hours after sample reaches the Central Processing Lab
- Service: Across India subject to serviceable PIN codes
What’s Included in QuantiFERON TB Gold Plus
| Component | What it represents | Report format |
|---|---|---|
| Tb1 Antigen Tube minus Nil Tube | TB antigen response (CD4 pathway) | Measured (used in algorithm) |
| Tb2 Antigen Tube minus Nil Tube | TB antigen response (CD4 + CD8 pathway) | Measured (used in algorithm) |
| Mitogen Tube minus Nil Tube | Positive control response | Measured (used for validity) |
| Nil Tube | Baseline interferon-gamma | Measured (used for correction) |
| Final Result | Algorithmic interpretation of tube responses | Positive / Negative / Indeterminate |
Preparation
- Fasting: Not required
- Medication: Share current medications and medical history with the referring clinician for interpretation context
- Recent exposure: Testing timing must be decided by the treating clinician when exposure is recent
Interpretation guidance (non-medical advice)
This test detects immune sensitization to TB antigens; it does not confirm disease stage. Final decisions require clinician correlation with history, examination, and other investigations.
Sample Collection and Reporting
- Sample collection: Free home/office collection as per the convenience of the beneficiary
- Sample type: Whole blood in two Lithium Heparin vials
- Sample quantity: 3 ml + 3 ml (total 6 ml)
- Reporting time: 56 hours after the sample reaches the Central Processing Lab
- Mandatory TRF details: Full name, complete postal address, date of birth, contact number, referring doctor’s name & contact, and patient/guardian signature
What the result means
- Positive: immune sensitization to TB-specific antigens; clinician correlation is required.
- Negative: does not exclude TB infection/disease; interpretation depends on clinical context.
- Indeterminate: test control responses are not adequate for interpretation; repeat testing and clinician guidance are required.
Booking steps (transactional)
- Send the beneficiary name and PIN code to WhatsApp support for slot confirmation.
- Share the address and preferred collection time for home/office pickup.
- Complete booking confirmation; collection is scheduled for the beneficiary’s available slot.
- Report is delivered digitally after processing completion.
Limitations (non-diagnostic statement)
- This is an indirect immune-response test; it is not a standalone diagnostic for active TB disease.
- Result interpretation depends on immune status and pre-analytical handling; clinician correlation is required.
- Interferon-gamma magnitude is not used to stage disease or track treatment response.
Service Coverage in India
Booking is available across India where home collection is enabled for the beneficiary’s PIN code. Slot confirmation is provided at the time of booking.
FAQs — QuantiFERON TB Gold Plus (IGRA)
Is fasting required for this test?
Fasting is not required for QuantiFERON TB Gold Plus.
What sample is collected and how much?
Whole blood is collected in two Lithium Heparin vials: 3 ml + 3 ml (total 6 ml).
What is the reporting time for this test?
Reporting time is 56 hours after the sample reaches the Central Processing Lab.
Does a positive result confirm active TB disease?
No. A positive result indicates immune sensitization to TB antigens. Clinical evaluation is required to determine disease status.
What does an indeterminate result mean?
An indeterminate result means the test controls are not adequate for interpretation. A clinician decides whether repeat testing is needed.
Is home collection available?
Yes. Free home/office collection is scheduled after booking confirmation for the beneficiary’s PIN code and available slot.
How do I book the test?
Use WhatsApp booking or phone support to confirm the beneficiary details, address, and collection slot, then complete booking confirmation.
Where can I see related test categories and offers?
Use the “Explore related pages” section below to browse TB tests, viral marker tests, fever profiles, and full body checkup offers.