The test is performed when the signs and symptoms are suggestive of blood clot, symptoms like pain and swelling in the extremities, shortness of breath, headaches. In women, it is done when she has experienced recurrent miscarriages and prolonged PTT. Depending on the signs and symptoms following more tests may be performed:
- Cardiolipin antibodies are the ones frequently ordered since they are the most common antiphospholipid antibodies.
- Lupus anticoagulant assays are done if a person has a prolonged PTT test.
- Beta-2 glycoprotein 1 testing may be ordered along with the other antiphospholipid antibodies to detect their presence.