RA

This laboratory investigation measures RA, a marker that may contribute to the assessment of inflammation, immune activity, or infection-related concerns, depending on the test. The result is not specific to one disease and should be interpreted alongside symptoms, examination findings, medical history, and other investigations. Levels may change over time and can be influenced by treatment or other health conditions. Follow the laboratory’s instructions for sample collection and preparation. Discuss the findings with the clinician who requested the test.