A Thyroid Scan uses a radioactive material to image the thyroid gland and assess its size, shape, location and function. This examination aids in the diagnosis of thyroid conditions such as hyperthyroidism or hypothyroidism and can evaluate thyroid nodules. However, there are many reasons why this test is performed and you should talk to your doctor about this.
- The patient is given an intravenous injection of a radioactive material.
- Imaging commences 20 mins after the intravenous injection and may take up to 45 mins.
- There are no side effects from this injection.