What is ESR Tube ？

The ESR Tube is an essential tool in medical laboratories, specifically designed for use in Automated Erythrocyte Sedimentation Rate (ESR) Analyzers, which measure the rate at which red blood cells settle in a period of time. This test is critical for diagnosing and monitoring inflammatory conditions, infections, and autoimmune diseases. The ESR Tubes are engineered with precision to ensure accurate blood collection, proper anticoagulation, and reliable test results.

Ø13×75mm ESR Tube

The Ø13×75mm ESR Tube is meticulously crafted for sedimentation rate testing following the Westergren method, the gold standard in ESR analysis. It features a mixing ratio of 1 part sodium citrate to 4 parts blood, ensuring proper anticoagulation and precise measurements. The tube’s dimensions and volume make it ideal for efficient blood collection and compatibility with most automated analyzers. Its reliable design facilitates smooth workflows in clinical settings, delivering consistent and reproducible test results.

Ø9×120mm ESR Tube

The Ø9×120mm ESR Tube is designed for broader compatibility with various Automated ESR Analyzers. Due to its smaller volume and controlled negative pressure, blood collection may take slightly longer. However, this design helps minimize sample waste and increases patient comfort. Proper handling is crucial—users must allow sufficient time for blood collection and ensure thorough mixing of the anticoagulant and additive by inverting the tube 6-8 times. This step prevents common issues such as hemolysis, coagulation, or bubble formation, all of which can adversely affect test accuracy.

Why Proper Handling Matters

Accurate ESR testing relies heavily on the proper use of these tubes. Ensuring the correct blood-to-anticoagulant ratio, patient adherence during collection, and thorough mixing are key to avoiding errors that could lead to misdiagnosis or treatment delays. The Ø13×75mm and Ø9×120mm ESR Tubes are manufactured to meet the highest quality standards, ensuring they deliver reliable results for critical medical diagnoses.

These tubes are not just tools—they are integral components of dependable, high-performing medical diagnostic systems used by healthcare professionals worldwide.