Tuberculosis infection t cell spot can diagnose tuberculosis

T SPOT. TB has important significance in the diagnosis of pulmonary tuberculosis, but it cannot be diagnosed solely by this examination.(T-SPOT. TB) has important significance in the diagnosis of pulmonary tuberculosis, but it cannot be relied solely on this test to confirm pulmonary tuberculosis. T-SPOT. TB detects gamma interferon released outside the cell after human infection with tuberculosis bacteria. Positive test results indicate the presence of Mycobacterium tuberculosis infection, but it cannot distinguish between past infection and current infection. In addition, some other diseases may also lead to T-SPOT. TB positive, such as tuberculosis, non-tuberculous mycobacterial disease, viral infection, autoimmune diseases, etc. The diagnosis of tuberculosis requires a combination of clinical symptoms, chest imaging, tuberculosis examination and other methods. If T-SPOT. TB is positive, accompanied by cough, expectoration, hemoptysis, low fever, night sweats and other pulmonary tuberculosis symptoms, chest imaging examination shows tuberculosis lesions in the lungs, and tuberculosis bacteria examination (such as sputum smear, sputum culture, tuberculosis nucleic acid test, etc.) positive, can be diagnosed with tuberculosis. For suspected tuberculosis patients, especially immunocompromised, high-risk groups (e.g. close contact with TB patients, HIV infected, etc.) or T-SPOT. TB results are uncertain, additional tests such as chest CT, tuberculin skin test are required (PPD test), erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), etc., to make a definite diagnosis. In short, T-SPOT. TB has certain help in the diagnosis of pulmonary tuberculosis, but it cannot be used as a basis for diagnosis alone. The diagnosis of tuberculosis requires a combination of clinical symptoms, imaging and laboratory findings, and diagnosis and treatment under the guidance of a doctor.