Why get tested? To help investigate the cause of recurrent inappropriate blood clotting; to help diagnose an antithrombin deficiency
When to get tested? A couple of months after a thrombotic episode or if you are not responding as your doctor expected to heparin anticoagulation therapy
Sample required? A blood sample drawn from a vein in your arm
This article was last reviewed on July 6, 2008.
This page was last modified on April 8, 2009.
The review date indicates when the article was last reviewed from beginning to end to ensure that it reflects the most current science. A review may not require any modifications to the article, so the two dates may not always agree.
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