When RA is clinically suspected, immunological studies are required, such as testing for the presence of rheumatoid
factorFactor ix complex (RF, a specific antibody).
The American College of Rheumatology has defined (1987) the following criteria for the classification of rheumatoid arthritis:
Morning stiffness of >1 hour most mornings for at least 6 weeks.
Arthritis and soft-tissue
swellingAbdomen - swollen
Ankle sprain swelling
Breast - premenstrual tenderness and swelling
Foot swelling
Foot, leg, and ankle swelling
Gums - swollen
Joint swelling
Mastoiditis - redness and swelling behind ear
Scrotal swelling
Swelling of >3 of 14 joints/joint groups, present for at least 6 weeks
Arthritis of hand joints, present for at least 6 weeks
Symmetric arthritis, present for at least 6 weeks
Subcutaneous nodules in specific places
Rheumatoid factor at a level above the 95th percentile
Radiological changes suggestive of joint erosion
At least four criteria have to be met for classification as RA.
For treatment follow up with an expert Rheumatologist or Orthopaedician! Take care