What Is a Healthy Range of Antinuclear Antibodies (ANAs)?

  • Medical Editor: William C. Shiel Jr., MD, FACP, FACR
    William C. Shiel Jr., MD, FACP, FACR

    William C. Shiel Jr., MD, FACP, FACR

    Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.

Ask the experts

What are the normal ranges for the ANA tests, especially the speckled pattern?

Doctor's response

Antinuclear antibodies (ANAs) are most commonly described in titers of dilution. That is, the highest dilution at which they remain detectable. Normally, ANAs are described as Negative when they are less than or equal to 1:40 dilution.

Read our full medical article on antinuclear antibody test.

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Reviewed on 1/11/2018