This is known as “therapeutic use”. Iodine-131 can be “seen” by nuclear medicine imaging techniques (i.e., gamma cameras) whenever it is given for therapeutic use, since about 10% of its energy and radiation dose is via gamma radiation….Iodine-131.
| General | |
|---|---|
| Symbol | 131I |
| Names | iodine-131, I-131, radioiodine |
| Protons | 53 |
| Neutrons | 78 |
What is iodine 131 called?
Your thyroid gland absorbs nearly all of the iodine in your body. Because of this, radioactive iodine (RAI, also called I-131) can be used to treat thyroid cancer.
What does I-131 stand for?
Iodine-131 (I-131) is a radioactive material produced in a nuclear reactor that supplies medical isotopes for nuclear medicine procedures. At high, therapeutic doses the radioisotope can be injected intravenously to effectively penetrate and destroy tumor tissues with localized radiation.
How long does iodine-131 stay in the body?
The radioiodine from your treatment will temporarily remain in your body. Most of the radioiodine not taken up by your thyroid gland will be eliminated within the first (2) two days after treatment. Radioiodine leaves your body primarily by your urine. Very small amounts may leave in your saliva, sweat, or feces.
What type of radiation does I-131 release?
The most widely used iodine radioisotope, iodine-131, emits radiation in the form of medium energy gamma rays and beta particles, which disrupts molecules in cells and deposits energy in tissues, causing damage. Iodine-131 is used for diagnostic and therapeutic purposes in nuclear medicine and oncology.
How is I-131 used?
I-131 is used in medicine to diagnose and treat cancers of the thyroid gland. Where does it come from? I-131 is produced commercially for medical and industrial uses through nuclear fission. It also is a byproduct of nuclear fission processes in nuclear reactors and weapons testing.
What kind of radiation is I-131?
Is Iodine-131 harmful to humans?
People exposed to I-131, especially during childhood, may have an increased risk of thyroid disease, including thyroid cancer. Thyroid cancer is uncommon and is usually curable. Typically, it is a slow-growing cancer that is highly treatable.
How long does iodine 131 stay in the body?
What is iodine 131 used for in medical terms?
Iodine-131 Medical Use. By Yolanda Smith, B.Pharm. Radioactive iodine (I-131) can be used in medical therapies as a treatment and a diagnostic tool. It is most commonly used in the treatment of hyperthyroidism due to Graves’ disease or a nodule in the thyroid gland.
What is the half life of 131I iodine?
a radioisotope of iodine having a half-life of 8.1 days and a principal gamma-ray photon energy of 364 keV; used in treatment of hyperthyroidism and carcinoma of the thyroid, in thyroid function testing, and in imaging of the thyroid gland and other organs. Symbol 131I.
Is I-131 a pure substance?
Pure I-131 is a non-metallic, purplish-black crystalline solid. However, because it readily binds with other elements, I-131 usually is found as a compound rather than in its pure form. For medical purposes, the I- 131 capsules contain small granules of I-131 sodium iodide that are designed to be swallowed by patients.
What is I-131 used to treat?
It is most commonly used in the treatment of hyperthyroidism due to Graves’ disease or a nodule in the thyroid gland. I-131 can be therapeutically administered as a single capsule that is to be taken orally. The radioactive iodine emits both beta and gamma radiation.
