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Clinical Laboratory Test:
whole blood — erythrocyte sedimentation rate

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Description

The erythrocyte sedimentation rate (ESR) is a clinical test that measures the rate at which red blood cells (erythrocytes) settle to the bottom of a tube of unclotted blood. It is used to detect inflammation in the body and to help diagnose certain diseases.

The ESR test is performed by collecting a sample of the patient's whole blood and placing it in a special tube. The tube is then placed in a vertical position and left to stand for one hour. During this time, the red blood cells settle to the bottom of the tube, forming a sediment. The rate at which the red blood cells settle is measured and recorded as the ESR.

The ESR test is a simple and non-invasive test that can provide valuable information about a patient's health. It is often used in combination with other tests to help diagnose and monitor certain diseases.

Synonyms
  • ESR
  • sed rate
  • sedimentation rate
Some Diseases Associated with an Abnormal Erythrocyte Sedimentation Rate
Detailed Laboratory Testing Information (use the custom search buttons below to find details on these topics)

All of the following must be considered when interpreting clinical findings and are too extensive to be covered on this site: