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Disposable Vacuum Blood Collection Tube of Slender ESR Tube

A blood test called an erythrocyte sedimentation rate (ESR) gauges how rapidly red blood cells, or erythrocytes, settle to the bottom of a test tube containing a blood sample. Red blood cells often settle fairly slowly. A higher-than-average rate could be a sign of internal inflammation. Inflammation is a normal aspect of your immune system's response. It could be a response to an injury or infection.

The primary function of the slender ESR tube is to measure the rate at which red blood cells settle in a vertical column of blood within a specific period. This crucial test is used to detect and monitor inflammatory conditions, infections, and certain autoimmune diseases. By providing a stable environment for blood collection, our ESR tube ensures that the sample remains uncontaminated and preserves the integrity of the blood cells, leading to more accurate test results.

  • Material Glass
  • Cap Color Black (Can be customized)
  • Specification 8*120mm
  • Additive 3.8% Sodium Citrate
  • Volume 1.28ml/1.6ml
  • Shelf Life 2 years

ESR tubes are mainly used for blood sample collection and anti-coaqulation during erythrocyte sedimentation rate test. lt contains 3.8%(0.12gmol/L) sodium citrate buffer which mixed with blood in a ratio of 4:1. It is suitable for ESR testing for different genders and ages.


8x120 ESR tube is applicable to various automated erythrocyte sedimentation rate analyzers. Because of little volume and negative pressure inside the tube, it needs some time for blood collection. Wait for the blood to stop flowing into the blood collection tube and mix it 6-8 times to fully mix the anticoagulant and the blood.

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