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Pregnancy
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Leg casting
|
Deficiency of antithrombin, protein C, or protein S
|
|
Postpartum (defined as 6 weeks after delivery)
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Major surgery (>30 minutes; general or spinal anesthesia)
|
Activated protein C resistance/factor V Leiden
|
|
Hormonal contraception (birth control pill, patch or needle)
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Acute medical illness with hospital admission for ≥ 3 days
|
Prothrombin gene mutation
|
|
Airplane travel (longer than 6 hours)
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Immobilization ≥ 3 days (in bed except to go to washroom)
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Anticardiolipin antibody positivity
|
| |
Active cancer
|
Nonspecific inhibitor
|
