Which are characteristics of rheumatoid arthritis (RA) that are unlike osteoarthritis (OA)?
a. Myalgia and stiffness
b. Joint pain; and that it is curable
c. Crepitus and instability
d. It is systemic and symmetrical
D
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A Incorrect. Myalgia and stiffness are characteristics of polymyalgia rheumatica; however, myalgia is uncharacteristic of RA and OA.
B Incorrect. Joint pain is characteristic of both RA and OA, but only OA is curable through joint replacement.
C Incorrect. These are clinical indicators of OA but not of RA.
D Correct. OA is not a systemic disease, nor does it affect joints symmetrically.
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