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Antithrombin
Also known as: Functional Antithrombin III, AT III
Formal name: Antithrombin, Activity and Antigen
Related tests: PTT, Coagulation factors, D-dimer, Fibrinogen, Homocysteine, Lupus Anticoagulant, Proteins C & S, PT, PT 20210, Factor V Leiden
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Common Questions
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1. How can I determine my risk of developing a blood clot?
2. Should I tell my dentist or other doctors about my antithrombin deficiency?
1. How can I determine my risk of developing a blood clot?
If you have a personal or strong family history of recurrent blood clots, your doctor may do a physical to determine your general state of health and order a series of tests to determine your risk of having a hypercoagulable disorder. The more inherited or acquired risk factors you have (such as a Factor V Leiden or PT 20210 mutation, or a Protein C or S deficiency), the higher your relative risk of clotting. This risk can be further increased if you are overweight, sedentary, have hypertension, smoke, and/or take oral contraceptives. It is important to remember, however, that any overall relative risk that is determined is still a statistical risk. No one can predict whether a particular patient will actually experience recurrent clotting.
2. Should I tell my dentist or other doctors about my antithrombin deficiency?
Yes. This is important information that your health care providers should know about as it affects your body’s ability to clot appropriately during and after a medical procedure.
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This article was last reviewed on
July 6, 2008
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