The TB Rapid Test Device (Whole Blood/Serum/Plasma) is a rapid visual immunoassay for the qualitative presumptive detection of anti-TB antibodies (Isotypes IgG, IgM and IgA) in whole blood, serum or plasma specimens. This kit is intended for use as an aid in the diagnosis of Tuberculosis.
Principle of TB Rapid Test Device
The TB Rapid Test Device (Whole Blood/Serum/Plasma) detects anti-TB antibodies through visual interpretation of color development on the internal strip. TB antigens are immobilized on the test region of the membrane. During testing, the specimen reacts with TB antigen conjugated to colored particles and precoated onto the sample pad of the test. The mixture then migrates through the membrane by capillary action, and interacts with reagents on the membrane. If there are sufficient antibodies to TB in the specimen, a colored band will form at the test region of the membrane. The presence of this colored band indicates a positive result, while its absence indicates a negative result. The appearance of a colored band at the control region serves as a procedural control, indicating that the proper volume of specimen has been added and membrane wicking has occurred.
Procedure and Result Reading of TB Rapid Test Device