What titer dilution is positive for ANA?

A positive antinuclear antibody (ANA) test is typically indicated by a titer of 1:40 or higher. However, the significance of the titer can vary depending on the laboratory and the clinical context. Higher titers, such as 1:160 or more, are often associated with autoimmune diseases. It's important to interpret ANA results alongside clinical findings and other tests for an accurate diagnosis.