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Ankylosing spondylitis (AS) is a type of inflammatory arthritis that primarily affects the spine. There is no specific blood test for AS, but blood tests may be used to help diagnose the condition or to monitor its progression. These tests may include tests to measure levels of inflammation, such as the erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP), as well as tests to check for the presence of certain genetic markers that are associated with AS, such as the HLA-B27 gene. A blood sample is required to perform this test.
This page is provided for educational and informational purposes only and does not constitute the provision of medical advice or professional services. The information provided should not be used for diagnosing or treating a health problem or disease, and those seeking personal medical advice regarding any of the tests and conditions referenced above are advised to consult with a licensed clinician. Always seek the advice of your qualified health provider regarding a medical condition and do not disregard professional medical advice or delay in seeking it because of any information on this page. If you think you may have a medical emergency, immediately call 911 or go to the nearest urgent care center or hospital.
