Learn about different types of thyroid tests, including blood tests, imaging tests and nuclear medicine tests. Find out how to prepare, what to expect and how to interpret your results. Different types of thyroid blood tests may be ordered to see how your thyroid gland is functioning. Learn about why you may need a thyroid blood test, what to expect during the test, and what results mean. The major thyroid hormone secreted by the thyroid gland is thyroxine, also called T4 because it contains four iodine atoms. To exert its effects, T4 is converted to triiodothyronine (T3) by the removal of an iodine atom. The Thyroid Profile Test is generally quick, painless, safe and well tolerated. However, there are minimal risks associated with the thyroid profile test. The complications and risks of Thyroid tests are as follows: - Temporary tenderness or bruising in the vicinity where blood was taken, usually easing soon after the test.
