Anti Nuclear Antibody (ANA) Titre
The test helps in the diagnosis of autoimmune diseases such as SLE, Mixed connective tissue disease, Rheumatoid arthritis, Sjogren’s syndrome, Progressive systemic sclerosis, and CREST syndrome. The incidence of low titer ANA positivity increases with age in normal individuals. Many drugs, such as Hydralazine and Procainamide may aggravate the production of ANA.
How to prepare for the test?
The patient is asked to avoid eating anything for 12 hours