ESR; ERYTHROCYTES EDIMENTATION RATE

The ESR (Erythrocyte Sedimentation Rate) test measures how quickly red blood cells settle in a tube of blood over one hour. When the body has inflammation — from infection, arthritis, or other inflammatory conditions — red cells clump and settle faster, so a raised ESR signals that something inflammatory is going on.

ESR is a non-specific marker: it does not name the disease, but it helps doctors track whether inflammation is present and whether treatment is working. It is one of the most frequently ordered add-on tests in fever and joint-pain workups across Lucknow.

When do doctors advise this test?

• Unexplained fever where the doctor is looking for an inflammatory cause
• Joint pain, stiffness or suspected arthritis
• Monitoring response to treatment in a known inflammatory condition
• As part of a broader workup alongside CBC and CRP

Preparation & the sample

The ESR sample is fasting whole blood collected in a special EDTA tube and must reach the laboratory promptly — it cannot be frozen. No special diet is needed beyond the fasting instruction your booking team confirms. Reports are issued the same day. Call +91 9451155402 to book a home sample collection in Lucknow.

This information is educational and general. Your doctor's advice for your specific situation always comes first.