Do you use anti-DFS70 Ab to help reduce the posttest probability of ANA-positive patients having a systemic autoimmune disease if other autoantibodies are negative?

I agree with Dr. Dixit that any lab test, especially an autoantibody test, has to be taken in context with the clinical features and other lab features. Our laboratory does not run this test as part of our serologic profiles. It may be reassuring to the clinician and patient that it is likely they d...