. Function & Key Features
This blood collection tube uses sodium citrate at 3.2% (0.109 mol/L) or 3.8% as the anticoagulant. It works by binding calcium ions to block coagulation while maintaining an exact 4:1 blood-to-anticoagulant ratio, preserving red cell integrity and plasma properties. Main features include:
Standard-Compliant Build:
Meets ICSH dimensional specs for ESR tubes.
Pre-loaded anticoagulant ensures accurate 4:1 dilution, minimizing volume errors.
Clear Tube Design:
Made from precision-molded glass or medical-grade polymer, with clear markings for easy reading of the sedimentation line.
II. Primary Applications
Designed specifically for ESR testing, this tube supports diagnosis in areas such as:
Detecting and tracking inflammation (e.g., infections, TB)
Monitoring autoimmune/rheumatic diseases (e.g., rheumatoid arthritis, lupus)
Supporting diagnosis in chronic conditions like blood disorders or cancers
Observing inflammation in geriatric or perinatal care
III. Specs & Procedure
Anticoagulant: Sodium citrate 3.2% (preferred) or 3.8%
Cap Color: Black (international standard)



Our Certificate
ISO13485, FSC, MSDS, FDA.
company philosophy
North America 15%, South America 15%, Southern Europe10%, South Asia 10%, Domestic Market 10%, Mid East 6%, Eastern Europe 5%, Southeast Asia 5%
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