EDTA tubes

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Model : 250

EDTA tubes are blood collection tubes that contain Ethylenediaminetetraacetic acid (EDTA) as an anticoagulant. These are commonly used in clinical and laboratory settings for various blood tests.

EDTA prevents blood from clotting by binding calcium, which is necessary for the clotting process. EDTA tubes are primarily used for:

  • Complete Blood Count (CBC)

  • Blood smears

  • Hemoglobin A1c (HbA1c)

  • Molecular testing (e.g., PCR, DNA analysis)

  • Blood typing and crossmatching


???? Characteristics of EDTA Tubes

Feature Description
Additive EDTA (commonly K2EDTA or K3EDTA)
Color of Cap Lavender or purple
Mechanism Chelates calcium ions to prevent coagulation
Volume Range Typically 2–10 mL depending on the tube
Specimen Type Whole blood or plasma

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