What is the role of lab testing in the diagnosis of juvenile idiopathic arthritis (JIA)?

Updated: Jul 25, 2019
  • Author: David D Sherry, MD; Chief Editor: Lawrence K Jung, MD  more...
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Answer

No diagnostic serologic tests for JIA are recognized, aside from rheumatoid factor assay for subclassification of polyarticular disease. Other tests, such as antinuclear antibody and HLA-B27 assays, may help further define diagnosis and risk of complications.


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