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Also known as: HLA-B27 antigen; B27
Formal name: Human leucocyte antigen B27
Related tests: ESR; CRP; RF; HLA testing

At a Glance

Why Get Tested?

To find out whether you have human leucocyte antigen B27 (HLA-B27) on the surface of your cells; to help assess whether you might have an autoimmune disorder associated with the presence of HLA-B27

When to Get Tested?

When you have symptoms of chronic inflammation, pain, and stiffness in certain areas of your body, such as your back, neck, and chest, or the interior portion of your eyes uveitis, especially if you are male and the symptoms began between late teens and your early 30s

Sample Required?

A blood sample taken from a vein in your arm

Test Preparation Needed?