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SST

SST (Serum Separator Tubes), often referred to as gel tubes, are blood collection tubes used in medical laboratories. They are designed to separate the serum from the blood after centrifugation.ST (Serum Separator Tubes), commonly known as gel tubes, are specialized blood collection tubes used in clinical laboratories to separate blood components for testing. They contain a gel that acts as a barrier between the serum and the blood cells once the blood sample is centrifuged.

Key Features


  • Gel Separator:The gel moves to form a physical barrier between the clot and the serum during centrifugation, keeping the serum free from cellular contamination.
  • Clot Activator: SST tubes typically include a clot activator to help blood clot quickly, speeding up the separation process.
  • Serum Use: These tubes are used to obtain serum, which is the liquid portion of blood without clotting factors. Serum is commonly used in various medical tests, such as those measuring hormone levels, cholesterol, liver enzymes, and glucose.


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