Tests that may be used to evaluate your thyroid include blood tests, radiology tests or biopsies. These tests are used to identify the characteristics of the thyroid disorder and what problems they are causing, specifically whether they are:
Enlarged nodules or goiters that can crowd around the wind pipe or gullet and make breathing or swallowing difficult
Cyst or fluid-filled nodules
Graves’ disease, which causes thyroid enlargement and hyperthyroidism
Hashimoto’s disease, where your thyroid is damaged by your immune system and hypothyroidism
Cancer or replicating abnormal cells
Radiology Tests
Imaging tests such as ultrasound, CT or MRI are used to
Work out the size of lumps or nodules in the thyroid gland
Visualize the consistency of the tissue within and around the gland
Imaging tests using radioactive iodine are used to