The inflammatory symptoms of classic gouty arthritis are caused by the crystallization of _____ within the synovial fluid
a. purines
b. pyrimidines
c. monosodium urate
d. acetic acid
ANS: C
In classic gouty arthritis, monosodium urate crystals form and are deposited in joints and their surrounding tissues, initiating a powerful inflammatory response. Uric acid is a result of purine metabolism, but purine is not present in the joint. Gout is not caused by an increase in pyrim-idines or acetic acid.
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