Thyroid Scan: What Affects The Test
Content provided by Healthwise
What Affects the Test
Reasons you may not be able to have the test or why the results may not be helpful include:
- Taking thyroid medicine.
- Eating foods with iodine, such as shellfish, iodized salt, or kelp.
- Having other tests using contrast materials in the past 4 weeks.
| Last updated: | August 14, 2008 |
|---|---|
| Author: | Caroline Rea, RN, BS, MS |
| Reviewed By: | Caroline S. Rhoads, MD - Internal Medicine, Matthew I. Kim, MD - Endocrinology & Metabolism |
| Editors: | Maria Essig, Tracy Landauer |
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