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Doctor insights on: Thyroid Radioactive Treatment

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Advice about radioactive iodine for a overactive thyroid?

Advice about radioactive iodine for a overactive thyroid?

Used as treatment: Your thyroid gland uses iodine to produce thyroid hormone. If you have an over-active thyroid gland, one option is to remove/destroy part of the gland. if radioacive iodine is given, the gland will take it up and will be damaged by the radiation, thus reducing the amount of hormone produced. after this occurs, some patients then have too little thyroid and need to take thyroid pills. ...Read more

Radioactive (Definition)

Radioactivity refers to the particles which are emitted from nuclei as a result of nuclear instability. Because the nucleus experiences the intense conflict between the two strongest forces in nature, it should not be surprising that there are many nuclear isotopes which are unstable and emit some kind of radiation. The most common types of radiation are called alpha, ...Read more


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How is radioisotope thyroid therapy?

How is radioisotope thyroid therapy?

Great treatment: Hi. I assume you're talking about radioactive iodine (specifically 131-I) for hyperthyroidism and not thyroid cancer. 131-Iodine is my preferred treatment for Graves' disease. It's painless, easy, and resolves the issue relatively quickly. It makes you hypothyroid, which is very easy to treat and doesn't require a specialist (although many of my patients keep coming to me for long term follow up). ...Read more

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Medicine for thyroid nodule?

Medicine for thyroid nodule?

Depends on problem: 3 major categories of potential health issues caused by thyroid nodules: a) large size affecting swallowing, breathing, voice ; b) over active production of thyroid hormone (hyperthyroid) ; and c) ~5% of nodules are cancer. Methimazole and ptu (propylthiouracil) are pills that block thyroid hormone production, treating b) above. Radioactive i-131 can shrink/destroy nodule, treating a) and b). Need surgery for c). ...Read more

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How will a radioactive iodine uptake test diagnose goiter?

How will a radioactive iodine uptake test diagnose goiter?

It will not: An i131 test does not "diagnose" goiter. Goiter is just a term meaning an enlarged and/or nodular thyroid. An i131 scan is a "fucntional" scan. It is used to determine if a nodule within the thyroid is "hot" - picks up a lot of iodine: hyper-metabolic. A "cold" nodule does not concentrate the iodine: hypometabolic. There is a lower risk of thyroid cancer in "hot" nodules. ...Read more

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Thyroid cancer treatments?

Thyroid cancer treatments?

Surgery: Surgery is needed, followed by thyroid hormone replacement. Depending on how big, what type and whether or not it had spread (lymph nodes involvement), you might also need 1 dose of radioactive iodine. Good luck. Make sure you have a good surgeon and an endocrinologist on your team. ...Read more

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I have low iodine diet before radio iodine treatment for thyroid cancers?

I have low iodine diet before radio iodine treatment for thyroid cancers?

Pre-treatment: You are on low iodine diet to keep normal iodine from competing with radio-iodine and interfering with the concentration of radio-iodine in the thyroid cancer. Wish you good health. ...Read more

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Whats the treatment for follicular adenoma thyroid nodules?

Whats the treatment for follicular adenoma thyroid nodules?

Watch them: Unless they are large, the treatment for adenomas of the thyroid is observation. They are removed when they are bug enough to cause symptoms. ...Read more

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What are the benefits of radioactive iodine therapy for hyperthyroidism?

What are the benefits of radioactive iodine therapy for hyperthyroidism?

Avoid surgery: Rai is designed to "kill" the thyroid without the need for surgery and surgical complications. The side effects of rai are few and manageable if done properly. Once your thyroid is dead, then you will need to take synthroid, (thyroxine) but that is easy... Much easier than taking antithyroid drugs like methimazole. You need an endocrinologist to guide you through this. ...Read more

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What medications treat follicular adenoma thyroid nodules?

What medications treat follicular adenoma thyroid nodules?

None: Medications are not used to treat follicular thyroid nodules. Usually they are observed only or removed surgically. ...Read more

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Is a thyroid scan and raidioactive throid treatment the same?

No: A thyroid scan is a study that exposes you to a small amount of radiation and allows the radiologist to see images of the thyroid. A radioactive thyroid treatment is when you are given very large amounts of radiation in order to "kill" the overactive thyroid or thyroid cancer. ...Read more

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How do doctors know if thyroid cells(cancerous and non) take up the radioactive iodine after rai treatment for papillary thyroid cancer?

How do doctors know if thyroid cells(cancerous and non) take up the radioactive iodine after rai treatment for papillary thyroid cancer?

Nuclear medicine: Nuclear medicine scans will show where the radioactivity is concentrated, which is almost always in these cases in the thyroid glands and in any metastatic lesions of thyroid cancer. ...Read more

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Are there natural therapies after having radioactive iodine treatment for graves disease?

Are there natural therapies after having radioactive iodine treatment for graves disease?

No: If you become hypothyroid after rai you need to take thyroid hormone to replace your bod's thyroid hormone. ...Read more

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Does rai ablation cure hyperthyroidism?

Does rai ablation cure hyperthyroidism?

See below: I assume by rai you mean radioactive iodine. When this radiophrmaceutical is used, it completely destroys thyroid tissue, thus ending hyperthyroidism. The pt then becomes hypothyroid & must take thyroid supplements for life. ...Read more

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Will the radioactive iodine capsule work for my thyroid uptake scan?

Will the radioactive iodine capsule work for my thyroid uptake scan?

YES: An uptake value will be established. Uptake can be low, normal, or high. Scan will be diagnostic if enough iodine localizes in the thyroid gland. Large amounts of stable iodine from iodized salt and ocean seafood can compete with radiodine and decrease uptake. ...Read more

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How is the rai dosage determined for metastatic papillary thyroid cancer?

Several factors: Amount of rai dose is caliculated , based on several factors, age, sex, body weight , extent of disease, blood levels reaching less than bone marrow toxic dose of lees than 200 rad . Dose varies li greater than 1.10 (30mci) most of the doctors will not bother to know as the expert radiotherapists doctors who are specially trained will calculate and administer ri. ...Read more

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What is the significance of radioactive iodine scan in various throid diseases like myxedema, hashimoto's thyroiditis and graves disease?

What is the significance of radioactive iodine scan in various throid diseases like myxedema, hashimoto's thyroiditis and graves disease?

Hot vs. cold nodule: Iodine uptake by thyroid tissue depends on functioning cells. The most common use for thyroid scan is to assess if a nodule is functional or not. A functional/hot nodule may cause hyperthyroidism but is not likely to be malignant. See this site for more info. http://www.nlm.nih.gov/medlineplus/ency/article/003829.htm. ...Read more

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Armour vs thyrolar (thyroxine and liothyronine) which is better thyriod medicine?

Armour vs thyrolar (thyroxine and liothyronine) which is better thyriod medicine?

Neither : The american thyroid association, the endocrine society and the american association of clinical endocrinologists all recommend the use of levothyroxine for the treatment of hypothyroidism and discourage the use of dessicated (dried) animal thyroid. ...Read more

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Armour vs thyrolar (thyroxine and liothyronine) for thyriod medicine?

Armour vs thyrolar (thyroxine and liothyronine)  for thyriod medicine?

Not the best: All of the major professional societies for thyroid specialists, the endocrine society, the american thyroid association, and the american association of clinical endocrinologists have issued formal statements indicating that levothyroxine is the best choice for most patients. Both armour and thyrolar (thyroxine and liothyronine) provide too much T3 relative to t4, making it very difficult to keep tsh, free T4 & T3 normal. ...Read more

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Is radioactive thyroid treatment also done with a injection or do you have to take a pill?

It is with pill only: Radioactive pill contains i-131 isotope containing radioactive iodine. Iodine is only needed by thyroid gland no other organs uses iodine.So once you swallow i-131 pill radioactive isotope labelled iodine absorbed from stomach and intestine and from blood it is trapped by thyroid gland to its maximum capacity and res is excreted by kidney into urine., and that is reason pt. Has to flush toilet ...Read more

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If a person has radioactive treatment of the thyroid, how long are they radioactive for, can it affect other people?

If a person has radioactive treatment of the  thyroid, how long are they radioactive for, can it affect other people?

It depends: It depends on the dose and the people you want to protect and the duration of proximity with the people. Higher the dose, recent the dose and younger the people and too close the proximity and longer the contact will affect proportionately. The biological half life I-131 is only couple of days to one week. So use your judgement. There is no need to worry unless you are breast feeding an infant . ...Read more

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If I get thyroid cancer, would I be able to get rid of it using radioactive treatment?

Some cancers: Some cancers of the thyroid are functional and concentrate iodine. Such cancers are susceptible to treatment with radioactive iodine. The tumors that do not concentrate iodine would not be suitable for radio iodine treatment. ...Read more

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I had full thyroid taken out they have talked about a scan and radioactive iodine treatment it has been 14 weeks i think this is a long ?

Not too long: 14 weeks out is not too long but you should be able to get the treatment now. Call your doctor to reevaluate the treatment options. ...Read more

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Is radioactive iodine a fairly safe treatment after total thyroidectomy for thyroid cancer? I'm 42 years old.

Is radioactive iodine a fairly safe treatment after total thyroidectomy for thyroid cancer? I'm 42 years old.

Radioactive iodine: It is safe and effective. It has been used millions of times and the side effects are low. It is being used more judiciously recently based on 2015 ATA guidelines. Low risk cancers don't usually need RAI. Intermediate risk can benefit from a low dose to ablate the thyroid remnant. High risk benefit from conventional RAI 70-100+ mCi. ...Read more

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After radioactive iodine treatment is it common to need an increase in Synthroid (thyroxine) dose after all remaining thyroid tissue has been abblated?

After radioactive iodine treatment is it common to need  an increase in Synthroid (thyroxine) dose after all remaining thyroid tissue has been abblated?

right amount: After complete ablation of thyroid tissue body needs required amount of thyroid hormone for each person , so requirement will increase due to lack of own thyroid tissue , so synthroid (thyroxine) dose need to be adjusted ( increases ). ...Read more

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Every since my radioactive iodine treatment after thyroid cancer I have had bad acne. Could this be related? I had the treatment in june of 2010.

Every since my radioactive iodine treatment after thyroid cancer I have had bad acne. Could this be related? I had the treatment in june of 2010.

Indirectly related: It would be very unlikely for the radioactive iodine to induce acne, but another change that probably happened around the same time is taking thyroid hormone. Thyroid hormone tablets could affect the balance between estrogen and testosterone, by changing the amount of sex hormone binding protein made by the liver. Lab tests could help your doctor know if this was causing your acne. ...Read more

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If you get radioactive treatment for thyroid disease, then is your pee and poop radioactive waste? For how long?

Radioactive poop: The minimum is 24-48 hours as your fecal material goes down the toilet, as well as urine, who really cares? The fish? Pee and poop away! ...Read more

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Is a thyroid scan and raidioactive throid treatment the same?

No: A thyroid scan is a study that exposes you to a small amount of radiation and allows the radiologist to see images of the thyroid. A radioactive thyroid treatment is when you are given very large amounts of radiation in order to "kill" the overactive thyroid or thyroid cancer. ...Read more

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I was diagnosed as having grave's disease in april of 2012. I received the radioactive iodine therapy on may 25th this year. My thyroid is under active now so i started taking levoxyl 100 mcg on august 30th and I am still feeling extremely tired and i ga

I was diagnosed as having grave's disease  in april of 2012. I received the radioactive iodine therapy on may 25th this year. My thyroid is under active now so i started taking levoxyl 100 mcg on august 30th and I am still feeling extremely tired and i ga

Need time to normal: Radio iodine therapy is used to treat graves' disease, by destroying the over active thyroid. It takes most patients a few months for the thyroid to drop to under-active levels. Once low thyroid is identified and Levoxyl started, it will take at least 3-4 weeks before levothyroxine has noticeable effects. Then it may take months to adjust to correct dose... Be patient while levels normalize! ...Read more

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Right side lombectomy of Thyroid removed to Follicular Cancer that's not spread.The Consultant says i have to make my own choice on the 2 treatments .I could have Radioactive Iodine or see consultant every 2 months with yearly Scan .Oncologist Ideas?

Right side lombectomy of Thyroid removed to Follicular Cancer that's not spread.The Consultant says i have to make my own choice on the 2 treatments .I could have Radioactive Iodine or see consultant every 2 months with yearly Scan .Oncologist Ideas?

Seek a second opinio: A second opinion from a Thyroid specialist(endocrinologist) will help and guide you better. I personally do not favor radioactive iodine unless the tumor was advanced or spread outside of the Thyroid gland which it does not appear to be. Check ups at 6 monthly intervals should be sufficient. ...Read more

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I'll need radioactive iodine therapy in 2 weeks for my thyroid cancer.How can I get rid faster of the iodine in my body from a CT scan i had yesterday?

I'll need radioactive iodine therapy in 2 weeks for my thyroid cancer.How can I get rid faster of the iodine in my body from a CT scan i had yesterday?

Not likely to work: If you received IV contrast with the ct scan, you will not be able to receive radioactive iodine in 2 weeks. It can take months for the iodine from the contrast to be excreted. You may be able to increase the rate slightly by taking a diuretic, but the best thing will be to wait at least 2 months. ...Read more

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Is there a kind of hyper thyroidism that resolves without treatment ?

Is there a kind of hyper thyroidism that resolves without treatment ?

Yes: Dequervain's thyroiditis can make you hyperthyroid for a few days or weeks then self-cure. Another cause is eating beef into which the animal's thyroid was accidentaly placed by the butcher. ...Read more

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What should I choose for thyroid treatment?

Unclear question: You do not say whether you are being treated for hyper or hypothyroidism (overactive or underactive), or a goiter or a nodule. Please rephrase your question with more specifics about what kind of thyroid treatment. ...Read more

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How can you get treatment for thyroid diseases?

YOUR PRIMARY CARE : Start with your primary care doc.Most of the thyroid problems can be diagnosed and treated by your pcp.If you have a condition he/she can not handle will refer you to an endocrinologist who are the specialists dealing with thyroid problems. ...Read more

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Which treatment for thyroid pain is the very best?

Depends on cause: The treatment can vary depending on the cause and can range from nsaids to surgery. See your pcp or an endocrine specialist. ...Read more

Dr. James Lin
13 doctors shared insights

Thyroid (Definition)

The thyroid is an endocrine gland that sits in the lower part of the neck. It produces thyroid hormone - which ...Read more