| Abbreviation | Name | Description |
|---|---|---|
| Westergren | Westergren | The erythrocyte sedimentation rate (ESR), also called a sedimentation rate, is the rate at which red blood cells precipitate in a given time period. It is a common hematology test which is a non-specific measure of inflammation. Anticoagulated blood is placed in an upright tube, known as a Westergren tube, and the rate at which the red blood cells fall is measured and reported. |