Sedimentation Rate
Sedimentation Rate : Sedimentation rate, or erythrocyte sedimentation rate (ESR), is a type of blood test. It is performed by placing blood containing an anticoagulant in a long, narrow glass tube and observing the speed at which the red blood cells settle and form a sediment at the bottom. Abnormally slow sedimentation rates occur in the presence of any serious infection, malignancy, or inflammatory disorder. The test does not diagnose any particular disorder, but indicates that one might be present