Thyroid Scan and Uptake Test
Medically reviewed by Drugs.com. Last updated on Apr 6, 2025.
A thyroid scan and uptake test are nuclear medicine tests done to examine your thyroid gland. During a thyroid scan, a small amount of radioactive tracer is given to create pictures of your thyroid. The pictures show the size, shape, and position of your thyroid. A thyroid scan may also show if there are any lumps in your thyroid. During an uptake test, a radioactive iodine tracer is given to show how well your thyroid works. The amount of radioactive iodine taken up by your thyroid will be measured.
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DISCHARGE INSTRUCTIONS:
Follow up with your healthcare provider as directed:
You may need to return to go over the results of your tests. Write down your questions so you remember to ask them during your visits.
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Drink liquids as directed:
Drink plenty of liquids after your thyroid scan and uptake test. This will help flush the tracer out of your body. Ask your healthcare provider how much liquid to drink each day and which liquids are best for you.
Contact your healthcare provider if:
- You develop any new symptoms after your tests.
- You have questions or concerns about your condition or care.
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Further information
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