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Thrombophilia Panel

Inherited and acquired causes of excess clotting.

13 tests explainedAlso printed as Hypercoagulable Panel, Clotting Risk Panel, Hypercoagulability Profile

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Type the results from your report. Each one is placed on its usual range, with its status in words.

Type the results from your Thrombophilia Panel report. Each one is placed on its usual range as you type.

  • %
  • GPL U/mL
  • MPL U/mL
  • U/mL
  • U/mL

Nothing you type here leaves your browser. Ranges differ a little between labs, so the range on your own report is the one your result is judged against.

The 13 tests in this panel

What each one measures and the range labs usually print for adults. Ranges differ a little between labs, so the range on your own report is the one your result is judged against.

  • Factor V Leiden (R506Q)

    A DNA test for a common inherited change in the F5 gene that lets blood clot a little more easily. Most people who carry it never develop a problem clot.

  • Prothrombin G20210A (Factor II)

    A DNA test for a common inherited change in the F2 gene that lets blood clot a little more easily. Most people who carry it never have a problem clot.

  • Protein C Activity

    Measures how well protein C works. Protein C is a natural blood thinner made in the liver that helps keep your blood from clotting too easily.

    18+
    65–150 %
  • Protein S Activity

    Measures how well protein S works. Protein S is a natural blood thinner that helps protein C keep your blood from clotting too easily.

    Men, 18+
    66–143 %
    Women, 18+
    57–131 %
  • Protein S, Free Antigen

    Measures the active, unbound form of protein S, a natural blood thinner. It is the test many labs use first to look for low protein S.

    Men, 18+
    74–147 %
    Women, 18+
    55–123 %
  • Antithrombin Activity

    Measures how well antithrombin, a natural brake on blood clotting, is working in your blood.

    Adults
    80–130 %
  • Lupus Anticoagulant

    A clotting-time test for lupus anticoagulant, an antibody effect that slows clotting in the lab even though it is linked to clots in the body.

  • Anticardiolipin Antibody IgG

    Measures IgG antibodies to cardiolipin, a fat in cell membranes. Levels above your lab's cutoff are one piece of testing for antiphospholipid antibodies.

    Adults
    0–14 GPL U/mL
  • Anticardiolipin Antibody IgM

    Measures IgM antibodies to cardiolipin, a fat in cell membranes. Levels above your lab's cutoff are one piece of testing for antiphospholipid antibodies.

    Adults
    0–12 MPL U/mL
  • Beta-2 Glycoprotein I Antibody IgG

    Measures IgG antibodies against beta-2 glycoprotein I, a blood protein. It is one of the tests used when a clinician is looking into antiphospholipid syndrome (APS).

    Adults
    0–15 U/mL
    Adults
    0–16.2 U/mL
    Adults
    0–20 U/mL
  • Beta-2 Glycoprotein I Antibody IgM

    Measures IgM antibodies against beta-2 glycoprotein I, a blood protein. It is one of the tests used when a clinician is looking into antiphospholipid syndrome (APS).

    Adults
    0–15 U/mL
    Adults
    0–8.5 U/mL
    Adults
    0–20 U/mL
  • Factor VIII Activity

    Measures how well factor VIII, a clotting protein that is low in hemophilia A, is working in your blood.

    Adults
    55–200 %
  • Homocysteine

    Homocysteine is an amino acid your body clears with B vitamins. Higher levels can reflect low B12 or folate, kidney function, age or genetics.

    18–60
    up to 14.5 µmol/L
    61–70
    up to 17.2 µmol/L
    71–80
    up to 19.2 µmol/L
    81+
    up to 21.3 µmol/L

Labs can include one more test in this panel that we haven’t written up yet.