Rheumatoid Factor (IgA) details
What Rheumatoid Factor (IgA) shows
Rheumatoid factor (RF) is an autoantibody that reacts against part of your own antibodies. Standard RF tests mainly detect the IgM type, while this test measures the IgA type specifically. It may be used to add information when evaluating rheumatoid arthritis, Sjögren's syndrome or other inflammatory conditions, particularly when other results are unclear. A positive IgA RF result has been associated with rheumatoid arthritis and, in some studies, with more aggressive disease, and it is also common in Sjögren's syndrome. Like other RF types, it can occur in other conditions and in some healthy people, so it is interpreted with anti-CCP antibodies and your symptoms.
Tests that include Rheumatoid Factor (IgA)
In conjunction with clinical findings and other laboratory tests, the presence of rheumatoid factor (RF) can be used to aid in the diagnosis of rheumatoid arthritis.
- Rheumatoid Factor (IgA) Measures the IgA type of rheumatoid factor, an autoantibody that may add information when evaluating rheumatoid arthritis and Sjögren's syndrome.
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