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Protein S Antigen Assay, Plasma

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Protein S Antigen Assay, Plasma

Accredited Facility E-report Qualified Specialists

This test measures the amount of Protein S, a natural anticoagulant involved in preventing excessive blood clotting. It helps assess clotting disorders and investigate inherited or acquired causes of thrombosis risk.

  • If abnormal blood clotting is suspected.
  • During evaluation of deep vein thrombosis or pulmonary embolism.
  • When inherited thrombophilia is being investigated.
  • If there is a family history of clotting disorders.
  • As recommended by a hematology specialist.
  • Fasting is usually not required before the test.
  • A blood sample will be collected into a coagulation tube.
  • Inform the healthcare provider about anticoagulants, hormone therapy, or oral contraceptives being used.
  • Recent blood clots, pregnancy, or acute illness may affect results.
  • Follow all laboratory instructions before sample collection.
    • Protein S Antigen Assay, Plasma
    No labs currently offering this test.