If you have a postiive ANA result, you could have an autoimmune disease. The test does not tell you which autoimmune disease you might have. In addition, 25% of CFS patients' and 29% of fibromyalgia patients' have a positive ANA titer as well.
ESR (AKA: sed rate) checks for inflamation in your body
RPR - checks for syphillis. However, if you have lupus and a number of other health conditions, you can get a false positive lab result. Physicians' sometimes order this test not to check for syphillis, but to help rule out other conditions.
RF - Is order to help diagnose rheumatoid arthritis and Sjogren's Syndrome. I read recently that 18% of fibromyalgia patient's also have a positive RF.
HLA B27 - This test is ordered sometimes when a physician believes you may have an inflammatory autoimmune disease.
ACE - This test is often ordered to help diagnose sarcoidosis and other health conditions.
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