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Protein S activity

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Protein S activity

Accredited Facility E-report Qualified Specialists

This test is done to evaluate the functional activity of Protein S, a natural protein that helps prevent abnormal blood clot formation by supporting Protein C activity. Low levels or reduced function can increase the risk of thrombosis. It is used to investigate inherited or acquired clotting disorders.

  • If you have a history of unexplained blood clots.
  • If there is a family history of thrombosis or clotting disorders.
  • If you have recurrent deep vein thrombosis or pulmonary embolism.
  • If a healthcare provider suspects a hereditary clotting disorder.
  • No fasting is required.
  • Inform your healthcare provider about anticoagulant medications, as they may affect results.
  • Testing may be affected during acute clotting events or pregnancy.
  • Follow any instructions provided by the laboratory or healthcare provider.
    • Protein S activity
    No labs currently offering this test.