Erythrocyte Sedimentation Rate (ESR)

Erythrocyte Sedimentation Rate (ESR) is a blood test that can reveal inflammatory activity in your body. It is not a stand-alone diagnostic tool, but it can help your doctor diagnose or monitor the progress of an inflammatory disease. ESR might be useful when evaluating unexplained fever, some types of arthritis and symptoms that affect your muscles. It can also help determine the severity of your inflammatory response and monitor the effect of treatment.