Why get tested? To help evaluate a prolonged partial thromboplastin time (PTT) and/or a thrombotic episode, to help determine the cause of recurrent fetal loss, and as part of an evaluation for antiphospholipid syndrome; not a diagnostic test for lupus
When to get tested? When you have a prolonged PTT test; when you have had a venous or arterial thromboembolism; when you have had recurrent miscarriages, especially in the 2nd and 3rd trimesters
Sample required? A blood sample obtained by inserting a needle into a vein in the arm
This article was last reviewed on May 23, 2007.
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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