Product Overview

Our disposable sterile EDTA K2 / K3 vacuum blood collection tubes are designed for routine hematology and whole-blood testing. Manufactured from medical-grade materials (available in PET or glass), each tube is pre-evacuated to draw a fixed blood volume and contains a precisely measured amount of EDTA (K2 or K3) applied to the inner wall to ensure consistent anticoagulation and sample stability. These tubes meet the needs of clinical laboratories, hospitals, and diagnostic centers that require reproducible, contamination-free whole blood specimens.

Key Benefits for Disposable Sterile EDTA K2 / K3 Vacuum Blood Collection Tubes

• Consistent, pre-measured vacuum draw — ensures accurate sample volume with minimal operator variability.
• Clinically appropriate anticoagulation — EDTA (K2 or K3) effectively prevents clotting for hematology analyses.
• Reduced sample artefacts — optimized additive formulation and recommended mixing to minimize hemolysis and cell morphology changes.
• Sterile, single-use — supplied sterile to prevent contamination and cross-infection; supports standard aseptic phlebotomy workflows.
• Clear color coding & labeling — purple/violet tops for EDTA tubes to expedite proper tube selection during collection.

Clinical Applications

• Complete blood count (CBC) / hematology
• Hemoglobin A1c and other whole-blood assays where EDTA is acceptable
• Blood type screening and other tests requiring reliable whole-blood preservation before analysis
• Routine diagnostic labs, point-of-care collections, clinical trials, and sample transport when whole blood stability is required

The Use of Different Vacuum EDTA Tubes

K2 vs K3 — What to choose?

• K2-EDTA: commonly preferred in modern hematology laboratories for its minimal dilution effect and good stability with current analyzers; often supplied as a spray-dried additive on the inner tube wall.
• K3-EDTA: historically used in some settings and formulations; may introduce slightly different ionic conditions (potassium concentration) that can affect certain measurements under suboptimal conditions. Choice should follow the lab’s SOP and analyzer manufacturer recommendations.

Product Specifications (example options)

• Material: PET (plastic) or borosilicate glass
• Additive: EDTA K2 (spray-dried) or EDTA K3 (liquid or dried, per SKU)
• Cap color: Purple / violet (EDTA)
• Standard sizes/fill volumes: 1 mL, 2 mL, 3 mL, 4 mL, 5 mL, 6 mL, 8 mL, 10 mL (configurable)
• Tube dimensions (typical): 13 × 75 mm, 13 × 100 mm, 16 × 100 mm
• Sterilization method: EO (ethylene oxide) or gamma (specify per batch)
• Shelf life: typically 24 months
• Storage: store at room temperature, away from direct sunlight; follow label for exact conditions

Usage & Handling — Best Practice

1. Verify tube integrity and expiration date before use.
2. Follow the recommended order of draw to avoid cross-contamination of additives.
3. After collection, gently invert the tube 8–10 times to mix blood with EDTA; do not shake vigorously.
4. Label specimen immediately and transport according to lab guidelines.
5. Avoid under-filling; an incorrect blood: additive ratio can alter cell indices.

Quality Control & Certification

We implement strict raw-material inspection, in-process controls, and final batch testing (including sterility, vacuum retention, and additive uniformity). Certificates of Analysis (COA), sterilization reports, and copies of CE/ISO/FDA documentation are available upon request or with an order. Traceability by lot number is provided for all shipments.

Packaging, Customization & MOQ

• Standard packaging: inner boxes of 50/100 tubes, outer cartons as required; custom tray inserts available
• Labeling & printing: custom barcode labels, patient-ready labels, and private-label/OEM options supported
• MOQ: flexible — sample orders available for evaluation; contact us for volume pricing and lead times

Ordering & Lead Time

We supply both small-batch and bulk orders worldwide. Lead time depends on SKU, sterilization method, and customization. For quotations including FOB/CIF/EXW pricing, shipping options, and available certificates, please send an inquiry with this information:

• Required SKU (K2 or K3, material, volume)
• Annual/initial order quantity
• Destination country (for regulatory docs)
• Any required custom labeling or packaging requests