Why get tested? To monitor treatment of some types of thyroid cancer and to detect recurrence; less commonly, may be used to help determine the cause of hyperthyroidism
When to get tested? Prior to and after the completion of treatment for thyroid cancer, before and after radioactive iodine therapy, and at regular intervals to monitor for recurrence
Sample required? A blood sample drawn from a vein in your arm
This article was last reviewed on September 11, 2006.
This page was last modified on April 8, 2009.
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