2010 ACR/EULAR Classification Criteria for Rheumatoid Arthritis (RA)

Classification criteria for rheumatoid arthritis (RA) by ACR/EULAR.

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

When To Use

Use to evaluate suspected cases of rheumatoid arthritis (RA) in patients with inflammatory synovitis.
Can be utilized in research or clinical trials to establish a uniform diagnostic standard for RA patients.

A. Số lượng và loại khớp tổn thương (Joint involvement)

B. Xét nghiệm huyết thanh học (Serology: RF hoặc Anti-CCP/ACPA)

C. Các chất phản ứng giai đoạn cấp (Acute-phase reactants)

D. Thời gian kéo dài của các triệu chứng viêm khớp (Duration of symptoms)

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This tool should be used as a guide in diagnosing RA alongside clinical judgment, diagnostics, and specialist consultation, particularly in borderline or atypical cases.
Score ≥6 with synovitis in ≥1 joint and absence of an alternative diagnosis:
- Highly indicative of RA.
- Refer to a rheumatologist for further management and possible initiation of DMARD therapy.
- Regularly monitor disease activity and response to therapy.
Score <6:
- Consider alternative diagnoses; further diagnostic workup (e.g., imaging, additional labs) may be warranted.
- Closely monitor and reassess if the patient’s symptoms change or evolve.

Interpretation:

Score	Diagnosis
≥6	Definite RA
<6	Not classifiable as having RA by ACR/EULAR Criteria