Symptom duration (reported by patient) Score

• Less than 6 weeks 0
•  6 weeks or more 1            

Joint Manifestation Points

• 1 Large paragraph 0
• 2-10 large paragraphs 1
• 1-3 small joints (with or without manifestation in large joints) 2
• 4-10 small joints (with or without manifestation in large joints) 3
• More than 10 paragraphs (at least 1 small paragraph) 5

 Serological antibody                                                                                 Scores

• RF and CCP- 0
• Make RF + or CCP + 2
• High RF + or CCP + 3

Acute phase reactants (ESR and CRP)                                                         Scores     

• Normal SR or CRP 0
• Abnormal SR or CRP 1

RF: rheumatoid factor. CCP: anti-cyclic citrullinated peptide. SR: Lowering reaction. CRP: C-reactive protein. Low RF or CCP: <3 x upper limit of the reference range. High: more than 3 x upper limit of the reference range

Requirement: the patient has at least 1 head joint, and the condition cannot be better explained by another condition.  Score of at least 6 points required for definite diagnosis of rheumatoid arthritis.

Literature

• Sakillariou G, 2013

• Bindevevssykdommer.no
• Vaskulitt.no