The HLA B27 Test is a specialized blood test used to detect the presence of the HLA-B27 protein on the surface of white blood cells. This genetic marker is commonly associated with autoimmune conditions like ankylosing spondylitis, reactive arthritis, and other spondyloarthropathies. A positive result does not confirm a disease but indicates a higher likelihood of developing certain a... https://redcliffelabs.com/hla-b27-flow-cytometry