What sample is required?
The determination is made from a venous blood sample.
Is some kind of prior preparation necessary?
For this test you do not need any special preparation.
Why do the analysis?
To evaluate certain autoimmune disorders such as systemic lupus erythematosus (SLE) and Sjögren's syndrome, among others.
When to do the analysis?
If your doctor suspects that the symptoms you are experiencing may be those of an autoimmune disease.