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        woman and man enjoying the beach

        IdentRATM with 14-3-3 eta: A Rheumatoid Arthritis Diagnostic Panel

        Early Diagnosis of RA, i.e. before significant joint erosion occurs, is difficult. The 14-3-3η (eta) protein is an emerging biomarker for diagnosis. Blood levels appear elevated in patients with RA, but not in other diseases.
        Female staff showing results to patient

        Preparing for biologic therapy

        Know your patients with rheumatoid arthritis are ready for biologic therapy with the Pre-biologic Panel, available exclusively from Quest. Learn more

        Two hands touching

        Rheumatoid Factor

        Assists in diagnosis and determining prognosis of Rheumatoid Arthritis. It detects primarily IgM Rheumatoid Factor.
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        14-3-3 eta

        Watch a presentation on "A New Direction in the Early Diagnosis of Rheumatoid Arthritis."

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        Arthritis Foundation

        Find additional resources for Rheumatoid Arthritis.

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        Nichols Institute

        For more than three decades, our Nichols Institute has pioneered many new tests and technologies and has often been first in advanced in laboratory testing.