Erythrocyte Sedimentation Rate (ESR) - Westergren's Method

What is Erythrocyte Sedimentation Rate (ESR)?

Erythrocyte Sedimentation Rate (ESR), commonly known as sed rate test, is a blood test used to detect inflammation in the body. This useful diagnostic tool uses Westergren's technique as the widely accepted standard to quantify the rate at which red blood cells sink at the bottom of a test tube over a one-hour period.

Why ESR Test is Performed ?

The ESR test assesses the rate at which red blood cells (erythrocytes) settle. The Westergren's method is one of the most common methods used for measuring ESR and is considered the standard method. This test can be a useful method for diagnosing and monitoring various conditions such as infections, autoimmune diseases, and cancers.

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• Profile Name: Erythrocyte Sedimentation Rate (ESR) - Westergren's Method
• Sample Type: Blood
• Preparations Required: There is no special preparation required for this test
• Report Time: 4 hours

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Erythrocyte Sedimentation Rate Procedure

ESR blood uses Westergren's technique. A blood sample is analysed in a tall, thin test tube during an ESR test, and the rate of red blood cell settlement is observed. Red blood cells settle slowly under normal conditions, but inflammation causes them to clump together, increasing the settling process. ESR westergren blood test is very useful in detecting and monitoring inflammatory diseases such as polymyalgia rheumatica, rheumatoid arthritis, and systemic lupus erythematosus. While this test has long been used in medical settings, its lasting significance stems from its simplicity and effectiveness. It functions as a general screening tool, encouraging additional research when abnormal values are detected.