This is an unprecedented time. It is the dedication of healthcare workers that will lead us through this crisis. Thank you for everything you do.
COVID-19 Resource Center

      Calc Function

    • Calcs that help predict probability of a diseaseDiagnosis
    • Subcategory of 'Diagnosis' designed to be very sensitiveRule Out
    • Disease is diagnosed: prognosticate to guide treatmentPrognosis
    • Numerical inputs and outputsFormula
    • Med treatment and moreTreatment
    • Suggested protocolsAlgorithm

    Disease

    Select...

    Specialty

    Select...

    Chief Complaint

    Select...

    Organ System

    Select...

    Patent Pending

    Log In

    Show
    Forgot your password?
    Log In
    Or create a new account (it's free)

    Forgot Password?

    Enter your email address and we'll send you a link to reset your password.

    Get New Password

    Sign In Required

    To save favorites, you must log in.

    Creating an account is free, easy, and takes about 60 seconds.

    Already have an MDCalc account?

    Login to link your favorites and recently used calcs

    Show
    Forgot your password?
    Log In
    Or continue to Nuance

    Attention COACH STUDY participants:

    The principal investigators of the study request that you use the official version of the modified score here.

    ACR/EULAR 2010 Rheumatoid Arthritis Classification Criteria

    Diagnoses rheumatoid arthritis (RA) in patients with undifferentiated inflammatory synovitis.

    INSTRUCTIONS

    Use in patients who have at least one swollen joint and no better explanation for synovitis.

    When to Use

    Do you use the ACR/EULAR Criteria for Rheumatoid Arthritis and want to contribute your expertise? Join our contributor team!

    0
    1 large joint
    1
    2-10 large joints
    2
    1-3 small joints (with or without involvement of large joints)
    3
    4-10 small joints (with or without involvement of large joints)
    5
    >10 joints (at least 1 small joint)
    0
    Negative rheumatoid factor and negative anti-citrullinated protein antibody
    2
    Low-positive rheumatoid factor or low-positive anti-citrullinated protein antibody
    3
    High-positive rheumatoid factor or high-positive anti-citrullinated protein antibody
    0
    Normal CRP and normal ESR
    1
    Abnormal CRP or abnormal ESR
    0
    <6 weeks
    1
    ≥6 weeks

    Diagnostic Result:

    Please fill out required fields.

    Next Steps
    Evidence
    Creator Insights
    Dr. Daniel Aletaha

    About the Creator

    Daniel Aletaha, MD, is an associate professor and consultant physician in the division of rheumatology at the Medical University in Vienna, Austria. His research focuses on clinical and translational science in inflammatory rheumatic disease.

    To view Dr. Daniel Aletaha's publications, visit PubMed

    Are you Dr. Daniel Aletaha? Send us a message to review your photo and bio, and find out how to submit Creator Insights!
    MDCalc loves calculator creators – researchers who, through intelligent and often complex methods, discover tools that describe scientific facts that can then be applied in practice. These are real scientific discoveries about the nature of the human body, which can be invaluable to physicians taking care of patients.
    About the Creator
    Dr. Daniel Aletaha
    Are you Dr. Daniel Aletaha?