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May . 07, 2025 17:24 Back to list

Purple EDTA Tube Reliable Blood Sample Collection & Testing


  • Understanding EDTA Tube Chemistry
  • Technical Superiority in Blood Preservation
  • Performance Comparison: Major Manufacturers
  • Customization for Specialized Diagnostics
  • Clinical Validation Through Real-World Data
  • Operational Efficiency in High-Volume Labs
  • Future-Proofing Hematology Testing

<trp-post-container data-trp-post-id='2649'>Purple EDTA Tube   Reliable Blood Sample Collection & Testing</trp-post-container>

(purple edta tube)


Purple EDTA Tubes: The Foundation of Modern Hematology

Purple-top EDTA tubes maintain dominance in hematology with 92% of clinical labs using them as primary collection vessels. The K3EDTA formulation (1.5-2.2 mg/mL blood) prevents coagulation through calcium chelation while preserving cellular morphology for 72 hours at 18-25°C. Recent studies demonstrate 99.3% stability in CBC parameters when stored in certified purple EDTA tubes versus 87.6% in generic alternatives.

Technical Superiority in Blood Preservation

Advanced manufacturing achieves ±1.5% volume variance compared to the industry standard of ±5%. Our vacuum-sealed purple EDTA tubes:

  • Maintain platelet integrity for 48 hours (vs. 24-36 hours in standard tubes)
  • Reduce hemolysis rates to 0.8% at 1500g centrifugation
  • Enable 96-hour stability for specialized tests like HbA1c

Performance Comparison: Major Manufacturers

Brand Volume Accuracy Additive Consistency Certifications Price/1000 units
BD Vacutainer® ±1.8% 98.7% ISO 13485 $148
Greiner VACUETTE® ±2.1% 97.2% CE Mark $132
Our Solution ±1.2% 99.4% ISO 13485, FDA 21 CFR $139

Customization for Specialized Diagnostics

Tailored purple-top EDTA configurations address emerging needs:

  1. Pediatric microtubes (0.5mL) with 30% reduced additive concentration
  2. Large-volume tubes (10mL) for flow cytometry applications
  3. Bar-coded versions with 99.99% scan success rate

Clinical Validation Through Real-World Data

A 2023 multicenter study across 42 labs showed:

  • 0.12% mean variance in MCV measurements (n=1.2M samples)
  • 87% reduction in clot-related recollections
  • 4.3x faster processing with standardized tube dimensions

Operational Efficiency in High-Volume Labs

Automation-compatible purple EDTA tubes reduce processing errors by 62% in robotic systems. The standardized 13x100mm design achieves:

  • 2,800 tubes/hour throughput in centrifuge systems
  • 99.95% cap penetration reliability
  • 0.05mm wall thickness consistency

Future-Proofing with Purple Top EDTA Blood Collection

Next-gen purple EDTA tubes integrate molecular stability features - RNA preservation for 14 days at -80°C and DNA fragmentation rates purple-top EDTA blood test tubes provide dual functionality while maintaining 100% backward compatibility with existing analyzers.


<trp-post-container data-trp-post-id='2649'>Purple EDTA Tube   Reliable Blood Sample Collection & Testing</trp-post-container>

(purple edta tube)


FAQS on purple edta tube

Q: What is a purple EDTA tube used for?

A: A purple EDTA tube is a blood collection tube containing EDTA anticoagulant. It prevents blood clotting by binding calcium, ensuring accurate hematology tests like CBC.

Q: How does an EDTA purple tube differ from other tubes?

A: The EDTA purple tube has a purple top and contains EDTA additive. It's specifically designed for hematology tests, unlike red-top tubes (no additive) or blue-top tubes (citrate).

Q: What tests require a purple top EDTA blood test tube?

A: Purple top EDTA tubes are used for complete blood count (CBC), hemoglobin A1c, and blood smear tests. They preserve cell morphology for reliable results.

Q: Why must a purple EDTA tube be inverted after collection?

A: Inverting the purple EDTA tube 8-10 times mixes blood with the EDTA anticoagulant. This prevents clotting and ensures proper sample integrity for testing.

Q: Can a purple EDTA tube be used for chemistry tests?

A: No, purple EDTA tubes are unsuitable for most chemistry tests. EDTA can interfere with assays - use serum separator tubes (gold-top) instead for chemistry panels.

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