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Thrombotic Risk Assessment Blood Test

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Feature Labcorp Quest Diagnostics
Price $3,015.99 Coming soon
Results in ~7 business days โ€”
Sample type Blood Plasma Serum Whole Blood โ€”
Require fasting No โ€”

About the test

The Thrombotic Risk Assessment assesses an individual's risk for developing a thrombotic event, such as a stroke or heart attack, by measuring factors affecting blood clotting.

Included biomarkers & Reference ranges

Biomarker Reference range
Homocysteine An amino acid byproduct of protein metabolism. Elevated levels are linked to increased cardiovascular risk and can reflect low B vitamin (B12, folate, B6) status. โ€”
Protein C Activity Measures the activity of Protein C, a natural anticoagulant. Low activity is linked to an increased risk of blood clots. โ€”
Activated Protein C Resistance Checks whether your blood resists the natural anticlotting action of activated protein C, most often caused by the inherited factor V Leiden variant. โ€”
Antithrombin III Activity Measures the activity of a protein that naturally helps prevent excessive blood clotting. Low levels are linked to an increased risk of blood clots. โ€”
Beta-2-Glycoprotein I Antibody (IgA) Measures IgA antibodies against beta-2-glycoprotein I, one of the antiphospholipid antibodies, used to evaluate antiphospholipid syndrome and causes of blood clots. โ€”
Beta-2-Glycoprotein I Antibody (IgG) Measures IgG antibodies against beta-2-glycoprotein I, one of the antiphospholipid antibodies, used to evaluate antiphospholipid syndrome and causes of blood clots. โ€”
Beta-2-Glycoprotein I Antibody (IgM) Measures IgM antibodies against beta-2-glycoprotein I, one of the antiphospholipid antibodies, used to evaluate antiphospholipid syndrome and causes of blood clots. โ€”
Cardiolipin Antibody (IgA) An antibody that attacks the body's own phospholipids (IgA type). One of the markers used to help diagnose antiphospholipid syndrome, which raises the risk of blood clots and pregnancy complications. โ€”
Cardiolipin Antibody (IgG) An antibody that attacks the body's own phospholipids (IgG type). One of the markers used to help diagnose antiphospholipid syndrome, which raises the risk of blood clots and pregnancy complications. โ€”
Cardiolipin Antibody (IgM) An antibody that attacks the body's own phospholipids (IgM type). One of the markers used to help diagnose antiphospholipid syndrome, which raises the risk of blood clots and pregnancy complications. โ€”
Dilute Russell's Viper Venom Time (DRVVT) Screen A clotting test that helps screen for lupus anticoagulant, an antibody linked with a higher risk of blood clots and some pregnancy complications. โ€”
Factor II (F2) DNA Analysis A genetic test for the prothrombin (Factor II) G20210A variant, an inherited change in the F2 gene that can raise the tendency to form blood clots. โ€”
Lupus Anticoagulant Detects lupus anticoagulant, an antiphospholipid antibody that prolongs clotting tests in the lab but is linked to an increased risk of blood clots. โ€”
Plasminogen Measures the activity of plasminogen, the protein that becomes plasmin to break down blood clots, used when assessing clotting and bleeding risk. โ€”
Protein S Antigen, Free The unbound, biologically active portion of Protein S, a natural anticoagulant. Low levels raise the risk of blood clots. โ€”
PTT-LA Screen A clotting-time screen sensitive to lupus anticoagulant, an antibody linked to blood clots, used as a first step in antiphospholipid testing. โ€”

Reference ranges vary by lab, age, and sex (M/F). Your report shows your exact range. Click any biomarker to see its optimal range and what your results mean.

How it works

  1. 1. Order online No referral or insurance
  2. 2. Get a requisition By email in 24โ€“72 hours
  3. 3. Visit a draw center Bring a matching photo ID
  4. 4. Get results Securely by email
  1. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
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