6Measure TSH Levels
To measure levels of TSH, a TSH test can be done. During this procedure, your doctor will draw blood from a vein in your inner arm and then send this sample for further testing in the lab. In general, you do not have to prepare for this test. But when you need to test for more than one health problem, you might be asked to fast or have some preparations. If the results show abnormally low or high levels of TSH, then another diagnostic test might be needed to find out the underlying cause. These procedures tend to check levels of specific antibodies or thyroid hormones. [7]
