KOMBITEST™ CD4 FITC / CD8 PE

The KOMBITEST™ CD4 FITC / CD8 PE is designed for percentage enumeration of mature human helper/inducer (CD4+) and suppressor/cytotoxic (CD8+) lymphocytes in erythrocyte-lysed whole blood. The helper/suppressor ratio (CD4+ / CD8+) may also be determined. This test is based on specific binding of monoclonal antibodies to the antigenic determinants expressed on the surface of leukocytes. The monoclonal antibodies are labeled with different fluorochromes which are excited via laser beam from a flow cytometer during analysis. Subsequent emissions of light from fluorochromes of each cell are collected and analyzed by a flow cytometer. The fluorescence intensity differences enable separation of cell subsets based on expression of analyzed antigens.
Regulatory status: CE IVD