American College of Rheumatology (ACR) guidelines

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American College of Rheumatology (ACR) guidelines

system of diagnosis of rheumatological disease (Table 1)
Table 1: American College of Rheumatology diagnostic criteria of rheumatoid disease
A diagnosis of rheumatoid disease is made if the patient shows four or more of the following:
1 Morning stiffness for at least 1 hour, and present for more than 6 weeks
2 Simultaneous swelling of three or more joints for at least 8 weeks
3 Swelling of the wrist, metacarpal or proximal interphalangeal joints for 6 weeks or more
4 Symmetrical joint swelling
5 Typical rheumatoid arthritis radiographic hand changes (erosions; bone decalcification)
6 Rheumatoid nodules
7 Presence of serum rheumatoid (Rh) factor in circulating blood
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