Antinuclear Antibodies: About This Test

Skip Navigation

What is it?

An antinuclear antibody (ANA) test measures the amount of antibodies in your blood that work against your own body. An ANA test is used along with your symptoms, a physical exam, and other tests to find an autoimmune disease.

Why is this test done?

An ANA test is done to help identify problems with the immune system, such as:

  • Rheumatoid arthritis.
  • Lupus.
  • Polymyositis.
  • Scleroderma.
  • Sjögren's syndrome.

How do you prepare for the test?

In general, there's nothing you have to do before this test, unless your doctor tells you to.

How is the test done?

A health professional uses a needle to take a blood sample, usually from the arm.

How long does the test take?

The test will take several minutes.

What happens after the test?

  • You will probably be able to go home right away.
  • You can go back to your usual activities right away.

Follow-up care is a key part of your treatment and safety. Be sure to make and go to all appointments, and call your doctor if you are having problems. It's also a good idea to keep a list of the medicines you take. Ask your doctor when you can expect to have your test results.

Where can you learn more?

Go to https://www.healthwise.net/patientEd

Enter I710 in the search box to learn more about "Antinuclear Antibodies: About This Test".




The Health Encyclopedia contains general health information. Not all treatments or services described are covered benefits for Kaiser Permanente members or offered as services by Kaiser Permanente. For a list of covered benefits, please refer to your Evidence of Coverage or Summary Plan Description. For recommended treatments, please consult with your health care provider.