The ANA test detects antinuclear antibodies in the blood. The normal immune system produces antibodies to help the body fight infections. In contrast, antinuclear antibodies often attack the body’s own tissues – specifically targeting the nucleus of individual cells – as part of an autoimmune response, in autoimmune diseases such as lupus, rheumatoid arthritis or scleroderma.

Antinuclear antibody test measures the amount of antinuclear antibodies, antibodies in the blood that are directed against the body (autoimmune reaction) and helps diagnose systemic autoimmune diseases. Therefore, this is the test used in the diagnosis of lupus erythematosus.

Antinuclear antibodies (ANA) are a group of antinuclear antibodies used in the diagnosis of autoimmune diseases. Based on specific antinuclear antibodies to diagnose patients with autoimmune diseases or lupus erythematosus. This article will help readers better understand the antinuclear antibody test as well as the ANA antinuclear antibody test process.