ESR (erythrocyte sedimentation rate)
Erythrocyte sedimentation rate (ESR) is a simple blood test used to detect inflammation in the body. It measures how quickly red blood cells, known as erythrocytes, settle at the bottom of a test tube over the course of one hour. When there is inflammation, proteins in the blood cause red blood cells to stick together and sink more rapidly, resulting in a higher ESR.
Doctors often use the ESR test to diagnose conditions that cause inflammation, such as infections, autoimmune diseases, and some cancers. However, it is important to note that an abnormal ESR is not specific to one condition and should be interpreted alongside other tests and clinical evaluations.
The test itself is quick and straightforward, involving drawing a blood sample typically from a vein in the arm. While ESR is an effective tool for monitoring inflammation, its results can be influenced by other factors such as age, pregnancy, and certain medications.
In summary, ESR is a useful indicator for detecting inflammation in the body, helping in the diagnosis and monitoring of various medical conditions.
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