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Lithium Heparin Tubes

Lithium Heparin Tubes are blood collection tubes used primarily in clinical laboratories for plasma separation. They contain lithium heparin, an anticoagulant that inhibits thrombin and other clotting factors, preventing the blood from clotting. These tubes are ideal for tests requiring plasma instead of serum.Lithium heparin tubes are critical for efficient and accurate testing, particularly in situations requiring fast plasma analysis.

Key Features


  • Anticoagulant: Lithium heparinacts by inhibiting thrombin, preventing clot formation, which allows for the immediate separation of plasma after centrifugation.
  • Rapid Testing: Plasma samples can be obtained more quickly than serum, making these tubes useful when time is critical for testing.
  • Concentration:he most common concentration for coagulation testing is 3.2% sodium citrate.
  • Volume-to-Anticoagulant Ratio: It is critical to fill sodium citrate tubes to the designated volume because the blood-to-anticoagulant ratio (typically 9:1) must be accurate for precise test results.


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