Reactive arthritis laboratory findings

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Laboratory Findings

Laboratory findings consistent with the diagnosis of reactive arthritis include:

• Elevated ESR
• Elevated C-reactive protein [CRP]
• Elevated TLC showing increased PMNs
• Synovial fluid analysis to determine cell count, culture, glucose, and presence of crystals.
• Additional lab evaluations include testing for HLA-B27, PCR or ELISA for reactive arthritis associated microorganisms.

References

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