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Writer's pictureSharad Mishra & LabAnalyst Team

Why is ESR a very important blood test ?

The ESR, or erythrocyte sedimentation rate, is a blood test that measures how quickly red blood cells (erythrocytes) settle to the bottom of a test tube. This test is commonly prescribed as part of a routine blood panel or when a person has symptoms of an inflammatory condition, such as swelling or pain.

The ESR is an important blood test because it can be a sign of inflammation in the body. Inflammation is a normal response by the body's immune system to injury or infection, but it can also be a sign of a more serious condition, such as cancer or autoimmune disease. By measuring the ESR, doctors can get a better idea of what's going on in the body and determine the appropriate treatment.


The ESR is also useful because it can help doctors monitor the effectiveness of treatment for inflammatory conditions. If the ESR is high, it may indicate that the body is still experiencing inflammation, and the treatment may need to be adjusted. On the other hand, if the ESR decreases over time, it may be a sign that the treatment is working.


The ESR is a relatively simple and inexpensive test that doesn't require any special preparation. It's often prescribed along with other blood tests, such as a complete blood count (CBC) or C-reactive protein (CRP) test. The results of the ESR test are usually available within a few hours.


In conclusion, the ESR is an important blood test because it can be a sign of inflammation in the body and can help doctors monitor the effectiveness of treatment for inflammatory conditions. It's a simple, inexpensive test that can provide valuable information about a person's health.




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