ESR Test in Chennai
For dependable and accurate ESR (Erythrocyte Sedimentation Rate) test in Chennai, Unittas Hospital provides efficient blood testing services to measure how quickly red blood cells settle at the bottom of a test tube, serving as a non-specific indicator of inflammation in the body.
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ESR (Erythrocyte Sedimentation Rate) Test in Chennai
For dependable and accurate ESR (Erythrocyte Sedimentation Rate) test in Chennai, Unittas Hospital provides efficient blood testing services to measure how quickly red blood cells settle at the bottom of a test tube, serving as a non-specific indicator of inflammation in the body.
The ESR normal range varies by age and gender: typically less than 15 mm/hr for men under 50, less than 20 mm/hr for women under 50, less than 20 mm/hr for men over 50, and less than 30 mm/hr for women over 50, with lower values (often 0 to 10 mm/hr) in children. Results are reported in millimetres per hour (mm/hr) using the standard Westergren method.
What is the Erythrocyte Sedimentation Rate (ESR) Test?
The Erythrocyte Sedimentation Rate (ESR) test assesses the rate at which red blood cells (erythrocytes) settle in a vertical tube over one hour. In the presence of inflammation, proteins like fibrinogen cause red blood cells to clump (rouleaux formation), making them heavier and settle faster, resulting in a higher ESR value.
This test is a helpful screening tool but not diagnostic on its own. It is commonly ordered to:
- Detect or monitor inflammatory conditions
- Support evaluation of infections, autoimmune diseases, or certain cancers
- Track disease activity or response to treatment in conditions like rheumatoid arthritis or temporal arteritis
- Assist in investigating unexplained symptoms such as persistent fatigue or fever
ESR Test Procedure
A small blood sample is drawn from a vein in your arm into a tube containing an anticoagulant (usually sodium citrate). The sample is placed in a tall, narrow Westergren tube and left upright for one hour. The distance the red blood cells fall is measured in mm/hr. No special preparation like fasting is required, though inform your doctor of recent illnesses, medications, or pregnancy, as these can influence results.
Understanding Your ESR Results
Normal or low ESR: Suggests little to no significant inflammation.
Elevated ESR: Indicates possible inflammation or other underlying issues; the higher the value, the greater the inflammatory activity. Extremely high levels (e.g., over 100 mm/hr) often point to serious conditions.
High ESR causes and treatment depend on the underlying reason, identified through further tests and clinical evaluation. Common causes include infections (bacterial, viral), autoimmune disorders (rheumatoid arthritis, lupus), inflammatory conditions (polymyalgia rheumatica, giant cell arteritis), certain cancers, anaemia checked with a PCV test, kidney disease, or even normal states like pregnancy. Treatment targets the root cause, e.g., antibiotics for infections, anti-inflammatory drugs or immunosuppressants for autoimmune diseases, or supportive care for chronic conditions.
High ESR symptoms are not specific to the test itself but relate to the provoking condition, such as joint pain and swelling, unexplained weight loss, persistent fever, fatigue, muscle aches, headaches, or night sweats. The esr test range helps gauge severity but must be interpreted alongside symptoms, history, and other investigations like CRP, full blood count, or imaging.
Why Choose Unittas Hospital?
Unittas Multispeciality Hospital is a NABH-accredited centre with branches in Tambaram and Kelambakkam, conveniently located for patients across Chennai and the OMR corridor. Our state-of-the-art in-house laboratory features advanced analysers for precise diagnostic testing, supported by experienced pathologists and specialists who deliver expert interpretation and personalised guidance.
We ensure quick, reliable turnaround, comfortable sample-collection areas, private spaces for result discussions, and seamless connections to specialist consultations, all in a single facility. With a strong emphasis on compassionate, patient-focused care, hygienic premises, and flexible timings, Unittas is a trusted choice for reliable diagnostics in Chennai.
Complete your inflammation check
ESR test questions
ESR reflects longer-term inflammation and can stay elevated longer, while CRP rises and falls more quickly with acute changes.
Yes, ESR naturally increases during pregnancy due to higher fibrinogen levels, often up to 40 to 50 mm/hr in the third trimester.
Yes, it helps track disease activity and response to treatment, though CRP is often used alongside it.
Low values can occur in conditions like polycythaemia, sickle cell disease, or spherocytosis, where red blood cells settle slowly.
Yes, normal values rise with age, so higher readings in older adults may still be within expected limits.
Yes, ESR is non-specific and can be normal in some inflammatory conditions, especially early or localised ones.
It may take days to weeks to decrease, as it responds more slowly than acute-phase markers like CRP.
Mild elevations can occur during menstruation due to hormonal influences on plasma proteins.
Commonly paired with CRP, complete blood count, rheumatoid factor, ANA, or imaging for better diagnostic clarity.
Yes, anaemia (especially with low haematocrit) can increase ESR by altering blood flow dynamics.
Yes, it is a simple blood test, and paediatric ranges are considered for accurate interpretation.
Strenuous exercise shortly before testing may cause minor temporary changes, but it's usually not significant.
A markedly elevated ESR (often more than 50 mm/hr) supports suspicion, prompting urgent treatment to prevent vision loss.
Anti-inflammatory drugs, steroids, or disease-modifying agents can reduce ESR as inflammation improves.
Borderline elevations may warrant repeat testing or monitoring, especially if symptoms are present.
It is not routine but included in some packages when screening for inflammation or chronic conditions. Unittas Hospital is committed to delivering precise and insightful diagnostic services like the ESR test in Chennai, helping you and your doctor make informed decisions for better health. Book your test today for reliable results and expert guidance.
All diagnostic tests at Unittas
Visit our Chennai labs
Both branches run the same NABH grade lab. Walk in during clinic hours, or call us to book your visit.
Tambaram
7, Duraiswamy Reddy Street, West Tambaram, Chennai 600045
Mon to Sat, 8 am to 8 pm. Sun, 9 am to 1 pm.
OMR Kelambakkam
141/1, Kazhipattur Village, OMR Main Rd, Kelambakkam 603103
Mon to Sat, 8 am to 8 pm. Sun, 9 am to 1 pm.
A five minute test that checks for hidden inflammation.
No fasting, no fuss. Walk in any time, or book a home collection across Chennai.
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