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Measures immune release of interferon-gamma to detect TB infection and guide screening or treatment decisions.
Interferon gamma release assay (IGRA) measures the amount of interferon-gamma your white blood cells release after exposure to specific tuberculosis (TB) proteins. It checks whether your immune system has been sensitized to TB bacteria. This matters because it helps identify latent TB infection and supports evaluation for active TB when used with other tests. Doctors use IGRA for screening after TB exposure, for people starting immunosuppressive drugs, and for high-risk workers or travelers. A positive test suggests TB infection. A negative test usually means no immune evidence of TB, but recent exposure or weakened immunity can cause false negatives. IGRA is not affected by BCG vaccination.
No special preparation is required.
The Interferon gamma release assay (IGRA) test evaluates various parameters related to the different components. Here are the main parameters that are checked in the test:
Interferon gamma release assay (IGRA) is used in TB screening panels for people with TB exposure risk or before immunosuppressive therapy. Doctors order it for symptoms like persistent cough, fever, night sweats, weight loss, or known contact with TB. It helps detect latent or active TB. Abnormal results usually indicate TB infection; weakened immunity, recent exposure, or some medicines can change accuracy. A family TB history raises testing importance.
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Vijay Bisht was friendly, helpful, and made our home test process seamless. Grateful for his timely support and follow-up.
A big thank you to Shikhar from the Visit app for going above and beyond to arrange a last-minute appointment during an urgent situation. His seamless coordination truly made a difference.
Shikhar Singh's prompt and proactive support—despite ongoing delivery issues—completely changed my view of Visit's service. Truly commendable!
I connected with the concierge team today and spoke with Vijay—he was helpful and made a real effort to address my concerns.
Vijay Bisht was friendly, helpful, and made our home test process seamless. Grateful for his timely support and follow-up.
A big thank you to Shikhar from the Visit app for going above and beyond to arrange a last-minute appointment during an urgent situation. His seamless coordination truly made a difference.
Shikhar Singh's prompt and proactive support—despite ongoing delivery issues—completely changed my view of Visit's service. Truly commendable!
I connected with the concierge team today and spoke with Vijay—he was helpful and made a real effort to address my concerns.
Thank you, Shared Gupta, for the great support with my reimbursement claims and Wipro health packages. Truly appreciated!
Huge thanks to Shikhar who handled our emergency situation with such care. He was always responsive, professional, and his dedication made a real difference.
The service was excellent—she was helpful, patient, and made my recovery smooth and stress-free. Her support made a real difference.
Great experience at a company that truly cares about its customers. The team went above and beyond to ensure everything was perfect.
Thank you, Shared Gupta, for the great support with my reimbursement claims and Wipro health packages. Truly appreciated!
Huge thanks to Shikhar who handled our emergency situation with such care. He was always responsive, professional, and his dedication made a real difference.
The service was excellent—she was helpful, patient, and made my recovery smooth and stress-free. Her support made a real difference.
Great experience at a company that truly cares about its customers. The team went above and beyond to ensure everything was perfect.