Products Description

PT Tubes | Light Blue Cap Citrate Vacuum Blood Collection Tubes (1:9 Ratio) | Coagulation Test Tubes

These PT Tubes (Light Blue Cap Sodium Citrate Vacuum Blood Collection Tubes) represent the gold standard in clinical coagulation testing. They are more than just a simple plastic or glass vessel; they are the bridge connecting patient vital signs with precise laboratory data. Choosing our coagulation tubes means choosing pre-analytical quality assurance that complies with international standards and delivers absolutely reliable coagulation analysis results.

Product Name	PT Vacuum Blood Collection Tubes	Qty/Carton	1200/1800pcs
Model	/	Additive	Sodium Citrate
Certificate	CE,DOC,ISO,MD,CFS	Cap Color	Blue/Light Blue
Tube Size(mm)	1375/13100/16*100mm	Type	Vacuum/Non-Vacuum
Volume(ml)	2-10ml	Material	Glass/PET
Packaging Size	50.5x35.5x35.5	Service	OEM/ODM

Product Details

Golden 1:9 Anticoagulant Ratio

Pre-loaded with 3.2% (0.109M) or 3.8% (0.129M) Sodium Citrate solution. The core value of the PT Tube lies in its strict 9:1 volumetric ratio of blood to anticoagulant. Any deviation in this ratio can directly compromise the accuracy of Prothrombin Time (PT) and International Normalized Ratio (INR) tests. Each tube undergoes individual negative pressure calibration before leaving the factory to ensure this precision.

International Standard "Blue Safety Lock"

The cap is made of highly visible light blue medical-grade polypropylene. In most clinical laboratories worldwide, this color code is exclusively reserved for coagulation tubes, effectively preventing mix-ups with red serum tubes or lavender CBC tubes during busy phlebotomy sessions, eliminating pre-analytical errors at the source.

Low-Hemolysis, High-Resilience Stopper

Equipped with a custom-hardness butyl rubber stopper. Its microporous structure ensures smooth needle penetration while rapidly resealing after needle withdrawal. This feature minimizes specimen hemolysis during vigorous inversion mixing of the vacuum tube, protecting erythrocyte membrane integrity.

Individual Sterile Tamper-Evident Packaging

Each disposable blood tube is hermetically sealed in medical-grade dialysis paper-plastic composite bags and printed with unique lot numbers and sterilization indicators. This not only guarantees sterility but also meets the stringent traceability requirements of modern hospitals.