The ANA blood test can be a useful tool for guiding a diagnosis. It can rule out if someone has a disorder called lupus, for example.
Lupus is an autoimmune disease. This means the immune system attacks the body's own cells. The ANA blood test detects autoantibodies that signal a number of autoimmune diseases.
The test has a range of uses. It is best as a diagnostic guide for doctors, who should use it while weighing up other factors such as symptoms.
Contents of this article:
- What is the ANA blood test?
- What to expect from the ANA blood test
- What happens after a positive ANA test?
