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Reactive Arthritis Diagnosis
How Is Reactive Arthritis Diagnosed?
Diagnosis of reactive arthritis may be difficult, because there are no specific laboratory tests that can confirm it. However, diagnosis may be confirmed based on a personal medical history and reported symptoms. Certain blood tests may be performed to rule out other conditions, such as rheumatoid arthritis and lupus.
Other diagnostic tests may include:
- Erythrocyte sedimentation rate (ESR or sed rate)
- Arthrocentesis (joint aspiration)
- Tests for certain infections that are often associated with reactive arthritis, including testing for Chlamydia
- Urine and stool samples
- X-ray - A diagnostic test which uses invisible electromagnetic energy beams to produce images of internal tissues, bones, and organs onto film to check for spondylitis, sacroiliitis, swelling or damage to the joint.