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Wednesday, July 30, 2014
Arthritis and Rheumatism
What autobody assay tests are used to diagnose lupus? Is there more than one test? And can other types of arthritis be diagnosed with antibody tests?
The test most commonly used to screen for lupus is the ANA panel which includes the anti-nuclear antibody test and other more specific antibody tests. Having a positive test does not make the diagnosis of lupus. The positive test is only one of the criteria that may be used to make a diagnosis of lupus. The other antibody test used for diagnosis of arthritis is the anti-CCP antibody test for rheumatoid arthritis although again having the positive blood test does not make the diagnosis of rheumatoid arthritis. Most arthritis diagnoses are based on a group of criteria rather than a specific blood test.
Johnny Su, MD
Formerly, Assistant Professor of Medicine
School of Medicine
Case Western Reserve University