Arthrocentesis with Synovial Fluid Analysis

Alternate Names

  • Joint Fluid Analysis

Synovial fluid is found in the joints of your body, and testing can be done on this fluid which will help your doctor diagnose numerous conditions affecting joint mobility. A small amount of fluid is taken from the affected joint with a needle, the fluid is examined with a microscope and tests are run on the fluid. These tests are used to identify the cause of joint pain and swelling which may be caused by autoimmune diseases, gout, joint infection, osteoarthritis or rheumatoid arthritis, or cancer. Arthroscopy is also used to inject medications directly into the joint or to monitor how well you are responding to treatment.


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