Iodine-131 is one of the isotopes of the element iodine. The atom is composed of a nucleus of 53 (positive) protons and 78 neutrons (53 + 78 = 131) and an electron cloud of 53 (negative) electrons; so electrically the atom is neutral.

53

78 neutrons

Answer: There are 53 protons, 53 electrons and 78 neutrons in a neutral atom of iodine-131. Explanation: Iodine-131 is a radioactive isotope of iodine-127.

Iodine I-131 is a radioactive isotope of iodine with an atomic mass of 131, a half life of eight days, and potential antineoplastic activity….3.1Computed Properties.

Most of the radioiodine not collected by your thyroid gland will be eliminated during the first two days after your treatment. It leaves the body primarily through your urine, but very small amounts may leave in your saliva, sweat and during a bowel movement.

First two days:

1. Do not share cups, glasses, plates or eating utensils. Wash items promptly after using.
2. Do not share towels or washcloths.
3. Flush the toilet twice and rinse the sink and tub after use.
4. Wash your towels, bed linens, underwear, and any clothing stained with urine or sweat.

Ingested Iodine-131 is dangerous because it primarily affects the thyroid gland that plays a fundamental role in childhood development. Radioactive iodine toxicity varies greatly with age, with toddlers, young children and adolescents being far more sensitive than adults.

Radioactive iodine (I-131), an isotope of iodine that emits radiation, is used for medical purposes. When a small dose of I-131 is swallowed, it is absorbed into the bloodstream in the gastrointestinal (GI) tract and concentrated from the blood by the thyroid gland, where it begins destroying the gland’s cells.

Summary: The benefits of I-131 remnant ablation include: [1] facilitating the interpretation of subsequent serum thyroglobulin levels, [2] increasing the sensitivity of detection of locoregional and/or metastatic disease on subsequent follow-up radioactive iodine whole-body scans, [3] maximizing the therapeutic effect …

NCI study finds long-term increased risk of cancer death following common treatment for hyperthyroidism. New study findings show an association between the dose of a common treatment for hyperthyroidism and risk of death from solid cancers.

Surgery for hyperthyroidism was associated with a lower risk of all-cause and cardiovascular death as compared to radioactive iodine therapy during long-term follow-up, particularly in men.

Radioactive iodine can kill the cells that make up the thyroid gland and thyroid cancer. If thyroid cancer has spread to other parts of the body, radioactive iodine can attack the disease there, too.

What To Expect After Treatment. Most people don’t feel different after treatment. But a few people may have nausea. Within a few days after treatment, the radioactive iodine will leave your body in your urine and saliva.

Depending on state regulations, patients may have to stay isolated in the hospital for about 24 hours to avoid exposing other people to radiation, especially if there are young children living in the same home.

In other cases, patients who work closely with others or with children, or those who are not tolerating the hypothyroidism well may decide to start work days or several weeks after treatment. 3. When can I resume my normal diet? You can resume a normal diet 2 days after your RAI treatment.

Clearing the radioactive iodine from your body Follow these guidelines to help the radioactive iodine leave your body quickly. Drink lots of liquids. Starting right after your treatment, try to drink at least 1 cup of low-iodine liquid every hour while you’re awake. Keep doing this for 2 to 3 days after your treatment.

In almost all cases, your thyroid hormone levels will return to normal or below normal after radioactive iodine treatment. This may take 8 to 12 weeks or longer.

You will be advised to sleep alone for the first few days after your treatment. During this period, you should avoid kissing or sexual intercourse. Also avoid prolonged physical contact with others, particularly children and pregnant women. If you have a baby, be sure to get instructions from your doctor.

Treatment of Iodine Excess People with excess iodine are advised to use salt that is not fortified with iodine and to reduce their consumption of foods that contain iodine, such as seafood, seaweed, yogurt, and milk.

They undergo treated with antithyroid drugs or with medication plus radioactive iodine treatment (RAI). Following treatment for hyperthyroidism, patients will observe a steady weight gain despite not changes in their eating or exercise.

Most often, you will not need to stay in the hospital. It can take 6 weeks to 6 months to see the full effects of RAI treatment. During this time, your thyroid blood levels will be monitored regularly. You may also need to take antithyroid drugs.

Fortunately, eating the right nutrients and taking medications may help reduce your symptoms and improve your thyroid function. Nutrients that are great for your thyroid are iodine, selenium, and zinc. Following a thyroid-friendly diet can minimize your symptoms and help you manage your weight.

Foods That Are Fine to Eat on the Low-Iodine Diet

• Fresh fruits and fruit juices, except rhubarb, maraschino cherries (if they contain Red Dye #3), and fruit cocktail with maraschino cherries.
• Vegetables, preferably raw and fresh-cooked or frozen without salt.
• Unsalted nuts and unsalted nut butters.

Pasta is not a source of iodine unless it is prepared in water containing iodized salt because it absorbs some of the iodine [11]….Food.

You will have to stay in your room for at least 1 to 2 hours after your treatment. You can use your cell phone or watch TV to help pass the time. You won’t be able to have visitors during this time. You may not have any side effects from the treatment right after you get it, but you may have side effects later.