Thyroid Scan

Radioactive Thyroid Scan, Technetium Scan of the Thyroid

What To Think About

• Blood tests may be done before a thyroid scan to measure the amount of thyroid hormones (TSH, T3, and T4) in your blood. For more information, see the medical tests Thyroid-Stimulating Hormone (TSH) and Thyroid Hormone Tests.
• A radioactive iodine uptake (RAIU) test may also be done to find problems with how the thyroid gland works, such as hyperthyroidism. For more information, see the medical test Radioactive Iodine Uptake Test.
• Cancer of the thyroid is usually treated with surgery. If the tumour is large, has spread outside the thyroid gland, or has recurred, it may then be treated with very high doses of radioactive iodine. After treating recurring thyroid cancer, a scan of the entire body can be done to see where the cancer has spread.

Go to previous section	Go to top of page	Go to next section
Author:	Douglas Dana Jan Nissl, RN, BS	Last Updated: December 1, 2006
Medical Review:	Adam Husney, MD - Family Medicine Caroline S. Rhoads, MD - Internal Medicine David C.W. Lau, MD, PhD, FRCPC - Endocrinology & Metabolism
© 1995-2008 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.This information does not replace the advice of a doctor. Healthwise disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. How this information was developed to help you make better health decisions.