Product Description

1. A specialized prothrombin time (PT) testing system comprising blood collection tubes and an INR (International Normalized Ratio) calibration foundation, engineered to deliver accurate, standardized results when used with automated analyzers.
2. This integrated PT tube and INR normalization base is optimized for seamless compatibility with automated diagnostic equipment, ensuring consistent activation of coagulation factors and precise calculation of INR values—critical for monitoring anticoagulant therapy.
3. Designed for clinical laboratories, the product combines a clot-activator-coated PT tube with a validated INR reference foundation, streamlining prothrombin time testing while meeting international standards for automated analyzer performance.

Core Mechanism

1. 3.2% Sodium Citrate

   • Precise chelation of calcium ions (Ca²⁺), inhibiting coagulation cascade

   • *Critical ratio control: Anticoagulant:Blood=1:9*

   • *＞10% deviation causes falsely prolonged PT/APTT*

1. Automated Analyzer Compatibility: Pre-calibrated to integrate with 主流自动化凝血分析仪(mainstream automated coagulation analyzers), reducing manual intervention and minimizing measurement errors.
2. INR Standardization: The built-in normalization foundation ensures results align with international INR benchmarks, enabling consistent comparisons across laboratories and testing platforms.
3. Optimized Coagulation Activation: PT tubes feature uniform coating of clot activators, promoting rapid, stable clot formation—ideal for timely prothrombin time analysis.

Core Applications

Critical Warnings

⚠️

• Underfilling (90% volume): PT prolongation ≥20% (may cause false heparin resistance)

⚠️

• *Gently invert 5-8 times immediately (vigorous shaking activates platelets)*

Automated Integration Excellence

• Seamless hardware-software synergy with automated analyzers eliminates manual calibration steps, reducing inter-operator variability by up to 30% compared to conventional systems.
• Proprietary interface design ensures real-time data synchronization with mainstream coagulation analyzers (e.g., Sysmex, Stago), cutting assay setup time by 40%.

2. INR Standardization Precision

• Embedded with WHO-certified reference calibrators, the normalization foundation achieves INR result consistency within ±0.1 across different testing platforms, exceeding CLIA proficiency standards.
• Advanced matrix-matching technology minimizes matrix effects between the PT tube’s additive and patient samples, ensuring INR values remain stable even with hemolyzed or lipemic specimens