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Irradiation is the process by which an object is exposed to radiation. The exposure can originate from various sources, including natural sources. Most frequently the term refers to ionizing radiation, and to a level of radiation that will serve a specific purpose, rather than radiation exposure to normal ...Read more
Yes in some cases: If you have graves' disease without any thyroid nodules, then a good treatment is radioactive iodine. If you have a hot nodule that was confirmed on a thyroid uptake and scan, then you don't need a biopsy prior to ablation. Otherwise, it's a case by case basis but there are cases (more common) where it is appropriate to ablate without a biopsy. ...Read more
Preferentially: A radio-iodine scan identifies any tissue that absorbs iodine and will preferentially "light up" any thyroid tissue. Metastatic thyroid cancer (outside the thyroid) will often take-up iodine, although to a lesser extent. Therefore, in order for a scan to effectively identify cancer 'elsewhere', all of the normal thyroid gland must be removed first. ...Read moreSee 2 more doctor answers
How safe is i 123 thyroid uptake and scan test as far as the amount of radiation you are getting during, after the test?
Very safe: The amount of radiation to your thyroid or body is extremely small with a test dose of i123 used for thyroid scans. However, it is a useless test in the evaluation of a thyroid nodule unless your TSH level is below normal. A thyroid nodule of 2.3 cm needs to be biopsied. The thyroid scan is unlikely to change that recommendation. ...Read more
Can you tell me why after radiation treatment for an over active thyroid the meds still don't work well and can't be regulated?
How long should it take to regulate my thyroid after a thyroid eradication ? I took the radiation pill a year ago in december and my thyroid is still not regulated. I have blood work done every 6 weeks and my pills keep changing.
It : It usually takes 3-6 months to get the thyroid regulated after i-131, but it may take a year or more. Reasons for difficulty getting the thyroid regulated include 1) not taking the medication on an empty stomach 2) taking antacids or medicines like Zantac (ranitidine) or Prilosec which decrease absorption of the thyroid 3) taking calcium or iron at the same time you take the thyroid, 4) checking labs too frequently and 5) relying on inappropriate lab tests. If you have a TSH level in the normal range, and you are feeling well, then you are regulated. ...Read moreSee 1 more doctor answer
Thyroid cancer: The most common types of thyroid cancer are treated with surgery and a dose of radio-iodine after the surgery (depending on certain features of the cancer). Radiation can be used in certain instances, but is not curative. Your grandfather's thyroid surgeon can help you with this question. ...Read more
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