Sed Rate (Erythrocyte Sedimentation Rate)
Also Known As: Sed Rate, Sedimentation Rate, ESR Blood Test
The erythrocyte sedimentation rate, also known as ESR, is based on how quickly red blood cells (RBCs) settle inside a test tube.
An ESR test is used to assess inflammation in the body. Many conditions can cause an abnormal ESR, so an ESR test is typically used with other tests to diagnose and monitor different diseases.