ANA Testing Pathology Quick Guide

A positive ANA in a patient who you do not think has SLE and who only has 1 of the diagnostic symptoms is most likely to be a NON-SPECIFIC FINDING. ANA alone has a low positive predictive value for SLE so it is unlikely to be useful in patient populations with a low prevalence of systemic lupus erythematosus (e.g. the elderly). ................
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