Antinuclear Antibody Panel Test
Health Checkups
≈ ¥200-500
(≈ $30-70)
2 day
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Description
Estimated cost for Antinuclear Antibody Panel Test at general public hospitals in China is about ¥140-400, and at Grade 3A hospitals about ¥200-500, varying by hospital tier and region.
Main Uses
The primary purpose of the ANA panel is to help diagnose and monitor autoimmune diseases, particularly systemic lupus erythematosus (SLE). It is also used to differentiate between various connective tissue diseases, assess disease activity, and guide treatment decisions. The test is applicable in scenarios where patients present with symptoms suggestive of autoimmune disorders, such as joint pain, fatigue, and skin rashes.
Normal Range
The normal range for an Antinuclear Antibody (ANA) panel is typically a titer of less than 1:40 or 1:80, depending on the laboratory. Specific antibodies within the ANA panel, such as anti-dsDNA, anti-Sm, and others, are usually reported as negative or with specific units that vary by lab but generally indicate no significant presence of these antibodies in healthy individuals.
Low Values - Possible Causes
Low values, or negative results, in an ANA test are expected in healthy individuals. There are no specific 'causes' for low values since a negative result is the norm. However, if someone with a known autoimmune condition suddenly shows a negative ANA, it could be due to effective treatment, remission of the disease, or technical issues with the test.
High Values - Possible Causes
High values, or positive results, can be caused by several conditions including Systemic Lupus Erythematosus (SLE), Sjögren's syndrome, Rheumatoid Arthritis, Mixed Connective Tissue Disease, and other autoimmune disorders. Additionally, some infections, certain medications, and even cancer can lead to elevated ANA levels.