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Sedimentation Rate Testing

Sedimentation Rate, Modified Westergren

Price: $34.99

This test is used to evaluate the nonspecific activity of infections, inflammatory conditions, autoimmune disorders, and plasma cell dyscrasias.

A significant deviation from the normal range may require further evaluation by your physician.

Synonyms: Erythrocyte Sedimentation Rate; ESR; Westergren Sedimentation Rate

Includes: Sedimentation Rate, Modified Westergren

Patient Instructions:


What is a Sedimentation Rate Test?

A Sedimentation Rate test measures a patientís blood by determining how quickly red blood cells, also known as erythrocytes, settle in a test tube in 60 minutes. A high sedimentation rate is identified by a large number of red blood cells falling to the bottom of the test tube during that time. When inflammation is present in a patientís body, their red blood cells bind together and descend more quickly than normal, and is typically brought about by an abnormal condition, which includes infection, autoimmune disease, or cancer.

Who May Need a Sedimentation Rate Test?

Sedimentation Rate tests are often part of a series of tests prescribed by a physician, either as a routine workup, or to determine the cause of symptoms in a patient Ė though they are also useful as a single test. The most common reason for a sedimentation rate test is to find out if inflammation or infection is present in a patient. The test can also be used to determine if treatments for various conditions resulting in an abnormal sedimentation rate are being effective, as well as to check on a patientís known condition in order to see if it has worsened or is improving.

What Should I Expect from My Sedimentation Rate Test?

Your Sedimentation Rate test begins by having a blood sample taken, which is then sent to a laboratory for analysis. There is no preparation required for this test. However, if you have any concerns about the test, speak with your physician or the health professional performing the test. After receiving your results on the test, speak with your physician about how they concern you and your health specifically. Though many laboratories use a common reference range for sedimentation rate test results, your doctor may consider other factors upon receiving your results, such as your age or general health status.

Questions regarding online blood testing or how to order a lab test?

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