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Sodium Citrate Tubes

Sodium Citrate Tubes are blood collection tubes that contain sodium citrate as an anticoagulant. These tubes are primarily used for coagulation tests, where the clotting ability of the blood is assessed. Sodium citrate works by binding to calcium ions, temporarily preventing blood clotting, which can later be reversed during laboratory testing.Sodium citrate tubes ensure accurate results in blood clotting tests, which are crucial for diagnosing bleeding disorders, monitoring anticoagulant therapy, and assessing overall coagulation function.

Key Features


  • Anticoagulant:Sodium citrate prevents the blood from clotting by chelating calcium, which is essential for the coagulation process.
  • Reversible Anticoagulation: In the lab, the anticoagulation effect can be reversed by adding calcium, allowing clotting tests to be performed.
  • 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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