**I. Product Functionality and Core Characteristics**
This blood collection tube contains **sodium citrate anticoagulant at either 3.2% (0.109 mol/L) or 3.8% concentration**. Its mechanism involves binding calcium ions to prevent clotting while maintaining a **strict 4:1 blood-to-anticoagulant ratio**, thus preserving uniform erythrocyte structure and plasma fluid properties. Key characteristics consist of:
- **Specification-Conforming Design:**
- Complies with dimensional guidelines for erythrocyte sedimentation tubes set by the International Council for Standardization in Haematology (ICSH).
- Contains pre-measured anticoagulant to achieve exact 4:1 dilution, preventing measurement inaccuracies.
- **Optically Transparent Tube Design:**
- Produced from precision-formed glass or medical-grade polymers, with distinct calibration indicators permitting clear viewing of the sedimentation demarcation.
- **Reliable and Standardized Results:**
- Rigorously applies the traditional Westergren method, ensuring compatibility with archived data and globally accepted reference values.
**II. Primary Application Contexts**
This product is engineered specifically for **erythrocyte sedimentation rate (ESR) measurement** and functions as an important diagnostic support tool in clinical situations such as:
- Detection and monitoring of inflammatory states (e.g., infectious processes, mycobacterial infections)
- Evaluation of disease progression in autoimmune and rheumatologic illnesses (e.g., rheumatoid arthritis, systemic lupus erythematosus)
- Ancillary diagnostic instrument for persistent disorders including hematopoietic deficiencies and oncological conditions
- Observation of systemic inflammatory markers in clinical areas including elderly care and perinatal medicine
**III. Product Specifications and Execution Protocol**
- **Anticoagulant Specification:** Sodium citrate solution at 3.2% (recommended) or 3.8% strength
- **Visual Distinguishing Feature:** Identified by a **black closure** (internationally established color scheme)
- **Essential Execution Steps:**
1. **Blood Sampling and Homogenization:** Obtain venous blood to the designated fill level (2.0 mL) and promptly execute 5–8 gentle inversion cycles to ensure uniform mixing.
2. **Device Preparation and Positioning:** Dispense the homogenized blood sample into an approved Westergren sedimentation apparatus until reaching the "0" indicator line, then place vertically in a certified sedimentation holder.
3. **Measurement Procedure:** After maintaining **60 minutes of stationary incubation** at **controlled room temperature (18–25°C)**, record the erythrocyte descent measurement expressed in millimeters per hour (mm/h).


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%

FAQ

01.How can we guarantee quality?
Always final Inspection before shipment; vacuum blood collection tube
27 years professional produce experience
02.What can you buy from us?
03.Do you have any certificates?
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