SS-B/La

The SS-B/La measures the presence of antibodies against the SS-B antigen in the blood. These antibodies are often associated with autoimmune disorders, particularly Sjorgen's syndrome. This test is used alongside SS-A (Ro) antibody test to help in the diagnosis of Sjogren's syndrome and other autoimmune diseases like Systemic lupus erythematosus (SLE). Detecting SS-B antibodies helps doctors assess autoimmune activity, confirm diagnosis and differentiate between various autoimmune conditions. However, the presence of SS-B antibodies alone is not definitive, and results should be interpreted in conjunction with clinical symptoms and other laboratory findings.