Screening test detecting antibodies against nuclear antigens. Positive result (especially at high titre, ≥1:160) warrants further specific antibody testing.
| Sex | Age | Range | Notes |
|---|---|---|---|
| All | ≥ 18 yrs | See notes | Positive if titre ≥1:80 (varies by lab); pattern and titre reported |
⚠ Clinical Note
Reference ranges are indicative. Always interpret results in the context of the individual patient and local laboratory reference intervals, which may vary.