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Thyroid Scan: Understanding the Test

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Thyroid Scan: Understanding the Test

Thyroid Scan: Understanding the Test (00:01:30)
Video Transcript

So, you want to learn more about a thyroid scan.

A thyroid scan gives your doctor a better understanding of what's causing a problem with your thyroid gland.

But let's back up for a minute and talk about the thyroid.

It's a butterfly-shaped gland that lies in front of your windpipe, just below the voice box.

The thyroid produces hormones that help control the way your body uses energy ...

also known as your metabolism.

For the test, you will either swallow a radioactive tracer up to a day before the scan ... or have it injected into a vein shortly before the scan.

The tracer will then collect in your thyroid gland.

A small and safe amount of radiation will be given off by the tracer.

If you have concerns about this, talk to your doctor before the test.

During the test, you'll lie on your back while a special camera takes pictures of your thyroid gland from different angles.

The camera does not give off any radiation.

It only detects the radiation given off by the tracer.

A thyroid scan can show the size and shape of your thyroid gland and whether it is working normally.

The results can help your doctor figure out why you have an overactive or underactive thyroid or some other thyroid issue.

Knowing more about why a test is done and what the results mean can help you and your doctor better understand what's happening inside your body ... and what may be your next step in treatment.

Remember, if you have questions or concerns about your results, be sure to talk to your doctor.

Current as of: July 31, 2024

Author: Ignite Healthwise, LLC Staff

Clinical Review Board
All Healthwise education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.

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Contact Us In Boise Boise
  1. Baker City
  2. Boise
  3. Buhl
  4. Caldwell
  5. Eagle
  6. Fruitland
  7. Hailey/Ketchum
  8. Jerome
  9. McCall
  10. Meridian
  11. Mountain Home
  12. Nampa
  13. New Meadows
  14. Ontario
  15. Riggins
  16. Sun Valley
  17. Twin Falls
(208) 381-2222