Radioactive iodine faq iodine 1 or radioiodine fact sheet. Use shielding to minimize exposure while handling 1i. Iodine 1 halflife atomic number 53 atomic weight 1 8. Courtois was extracting sodium and potassium compounds from seaweed ash. This safety data sheet was created pursuant to the requirements of 29 cfr 1910. Iodine 1 decays by betaparticle emission to excited levels of xe 1 including the isomeric state xe1m. Iodine 1 1 i, i 1 is an important radioisotope of iodine discovered by glenn seaborg and john livingood in 1938 at the university of california, berkeley. Cancer in the case of cancer, following removal of the thyroid, a large dose of radioactive iodine may be prescribed to completely ablate destroy any remaining thyroid tissue in the thyroid area.
To call long distance, you need to bring your own calling card. Iodine1 definition of iodine1 by medical dictionary. Iodine124 radiochemical process data nuclear reaction 124ep,nt 124i chemical processing dry distillation of iodine from an activated target into an alkaline solution assay gammaray spectrometry. The development of transient hypothyroidism after iodine 1 treatment in hyperthyroid patients with graves disease. First introduced in 1946, radioactive iodine i 1 produces shortrange beta radiation. I1 fact sheet iodine1 n, gamma radiochemical sodium. It is most commonly used in the treatment of hyperthyroidism due to graves disease or a nodule. An allergic reaction to the radioactive iodine is extremely rare. These include diagnostic and therapeutic thyroid applications in either a solution or capsule form, industrial tracers, and various research. Iodine in the thyroid is retained with a biological halflife of 120 days in the form of organic iodine. Archived from the original pdf on 29 september 2011.
Aug 23, 2018 radioactive iodine i1 can be used in medical therapies as a treatment and a diagnostic tool. In groundwater, the average iconcentration is approximately 1 g l1 atsdr 2006. I1 radionuclide fact sheet stanford environmental health. A separate storage container should be made available for. Hard gelatin capsules provided for the preparation of the sodium iodide i 1 final dosage form contain approximately 300 mg of dibasic sodium phosphate anhydrous usp as the absorbing buffer. Designate area for handling 1i and clearly label all containers. Iodine 1 ablation following total thyroidectomy is considered an indispens able element of successful treatment of differentiated thyroid carcinoma dtc. Thyroid hormones regulate many important biochemical reactions, including protein synthesis and enzymatic activity, and are. Iodine 1 cs4 55 protons 82 neutrons radionuclide data sheet cesium. A radioisotope of iodine that emits beta and gamma rays, has a halflife of 8. Msds sodium iodide i 1 solution, usp jubilant draximage inc. Common internal routes of entry are inhalation, ingestion, skin absorption, and puncture wounds to the skin.
In comparison, the average survival time with medication or with surgery is only 2 years. Hyperthyroidism can be caused by graves disease, in which the entire thyroid gland is overactive, or by nodules within the gland which are locally overactive in producing too much thyroid hormone. Fraction of i1 beta particles 606 kev transmitted through the dead layer of skin. A radioactive isotope, also called a radioisotope, is a form of an element which is unstable due to a slightly different atomic makeup. Radionuclide data sheet iodine 1 i 1 53 protons 78 neutrons. Clinical journal of oncology nursing volume 12, number 6 iodine 1 treatment for thyroid cancer and hyperthyroidism 907. Radioactive iodine i 1 also called radioiodine i 1 therapy is a treatment for an overactive thyroid, a condition called hyperthyroidism. When a small dose of i 1 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 glands cells. The availability of iodine in foods differs in various regions of the world. Blocking the uptake of radioiodine with the stable nuclide is not permitted. Nuclide safety data sheet iodine1 health physics society.
Iodine 1 therapy for hyperthyroidism 5page 2 of 4 continues over page 052014v3. Although woods work was done with iodine 1, other iodine isotopes should behave similarly. Iodine 1 is also used to label antibodies for therapeutic applications. These materials do not present a significant hazard due to direct toxic effects, but do present a small hazard due to radioactivity, especially if taken into the body. Aug 23, 2018 iodine 1 i 1 is a radioactive substance that emits both beta and gamma radiation and has a halflife of 8. Conduct a baseline thyroid scan prior to first use of radioactive iodine conduct thyroid scan no earlier than 6 hours but within 72 hours of handling 1 mci or more of 125i or after any suspected intake. A retrospective study was performed, analyzing iodine 1 1 i therapy in 21 dtc patients with lung metastases that were undetected by ct. Sodium iodide i 1 solution, usp jubilant draximage. Because iodine is taken into thyroid cells, radioactive iodine, usually the isotope 11, can be used in just such a manner to treat some types of thyroid cancers, or. Galasko, in pharmacology and therapeutics for dentistry seventh edition, 2017. Wear extremity and whole body dosimeters while handling mci 37 mbq quantities of 1i.
Iodine is a trace element that is naturally present in some foods, added to others, and available as a dietary supplement. Complete the evaluation questionnaire and posttest, including your name, mailing address, phone number, and email address, if available. The fission yield of iodine 129 is about 1% and the yield of iodine 1 is close to 3%. Iodine 125 information and safety sheet i125 is both an internal and external hazard to the body. Iodine i 1 decays by beta emission and associated gamma emission with a physical halflife of 8. Iodine deficiency iodine deficiency remains a major issue in other parts of the world, including parts of europe, africa and asia. Two isotopes of iodine 123 i and 1 i are clinically useful for imaging and may be administered as iodide. Iodide solutions are easily oxidized and the elemental iodine will become airborne. Pdf radioiodine i1 for diagnosing and treatment of. Department of nuclear medicine mcmaster university medical centre. Pdf in vitro and in vivo targeting properties of iodine. Iodine is an essential component of the thyroid hormones thyroxine t4 and triiodothyronine t3.
High dose radioactive iodine nuclear medicine department. The 1 i isotope has a halflife of 8 days and emits. In addition, patients treated with i 1 therapy have a longer median survival time than patients treated with methimazole alone. It is successful in curing the disease in 95% of cats. Identification of the substancepreparation and of the companyundertaking product identifier product name iodine 1 product number 810 synonyms none. Aizawa y1, yoshida k, kaise n, fukazawa h, kiso y, sayama n, hori h, abe k. Iodine 1 1i january 2003 fact sheet 320085 division of environmental health office of radiation protection who discovered iodine. Iodine is required by the thyroid gland in order to produce the thyroid hormones. The photons emitted are 28kev 92% and 159kev 84% gamma rays. Radionuclide data sheet iodine 1 cs4 55 protons 82 neutrons radionuclide data sheet cesium. Radioactive iodine treatment of hyperthyroidism in cats. Radioactive iodine i1 therapy for hyperthyroidism what is radioiodine i 1 therapy and how is it used. Given orally, it is concentrated in the thyroid, where the.
Scan and radioactive iodine uptake, raiu, since it is harmless to thyroid cells. Isotopes of iodine an overview sciencedirect topics. Cats survive on average over 5 years after treatment with radioactive iodine. Iodine 1 is a radioisotope with a very short halflife of 8. Usually given as a capsule, the iodine 1 gets taken up by thyroid cells, the only cells in the body that can absorb iodine. Iodine 1 has a clearance halflife of less than 10 days. In vitro and in vivo targeting properties of iodine 123or iodine 1 labeled monoclonal antibody 14c5 in a non small cell lung cancer and colon. Iodine 1 and other gammaray emitting radionuclides after any nuclear accidents or nuclear weapons testing evolving longterm radioactivity contamination of artificial radionuclides like americium241, antimony124, antimony125, barium3, beryllium7, cadmium109, cerium9, cesium4.
It is associated with nuclear energy, medical diagnostic and treatment procedures, and natural gas production. It has a radioactive decay halflife of about eight days. Iodine1 is a radioisotope of iodine that has been used in some medical diagnostic procedures and treatments. Ngamma iodine 1 is produced octovial by the irradiation of tellurium other vial options may be available. Although they can be stopped by a thin sheet of aluminum, beta particles can penetrate the dead skin layer, potentially causing burns. I 1 therapy involves a single injection of radioactive iodine. Iodine1 therapy cancer treatment theranostics australia.
Radioiodine i 1 for diagnosing and treatment of thyroid diseases. Iodine 1 therapy is usually given in a hospital outpatients department or private radiology practice that offers nuclear medicine services. Radiation exposure from iodine 1 agency for toxic substances. Radioactive iodine treatment is considered the safest and most effective permanent treatment for hyperthyroidism in cats. External hazards are caused by contamination, poor work habits, and improper shielding.
The principal gamma emission of 364 kev is considerably higher than the ideal for imaging with gamma cameras. Capitals indicate lifethreatening, underlines indicate most frequent. Iodine1 decays by beta emission and has a halflife of 8. Symptoms of hyperthyroidism begin to improve in a few days to a few weeks, but 2 to 3 months are often required. The energies of both are significant, so quite high dose rates are emitted by this nuclide, and the gamma radiation is quite penetrating. Iodine was discovered by the french chemist barnard courtois in 1811. The halflife is 8 days, so over the likely period of use of the material, there is not a large reduction in activity. These include diagnostic and therapeutic thyroid applications in either a solution or capsule form, industrial tracers, and various research applications such as antibody labelling. This information should not take the place of medical care and advice from your healthcare provider. Radioactive iodine i 1, an isotope of iodine that emits radiation, is used for medical purposes. About 70% of activity inhaled is deposited in the body and about 30% of that is deposited in the thyroid.
Clinical journal of oncology nursing volume 12, number 6 iodine1 treatment for thyroid cancer and hyperthyroidism 907 for the duration of therapy, the visitors dose does not exceed the annual limit for the general public of 1 msv 0. Ci rooms require posting when there is greater than 10 ci. Under normal circumstances, there are low levels of i 1. Frequently used in small doses in thyroid cancers therapies, it is also one of the most feared fission products when accidentally released into the environment. To receive your continuing education credit, you must answer all of the questions. Iodine1 and thyroid function article pdf available in environmental health perspectives 1222. Radioprotection using iodine1 for thyroid cancer and. Washington state department of health office of radiation. Outpatient iodine1 therapy using greater than 1100 mbq 30mci. Sodium iodide i 1 solution therapeutic is a radioactive therapeutic agent indicated for the treatment of hyperthyroidism and thyroid carcinomas that take up. Uses advised against food, drug, pesticide or biocidal product use details of the supplier of the safety data sheet. Radioactive iodine, also known as radioiodine or iodine 1, is a radioactive isotope of the element iodine.
The development of transient hypothyroidism after iodine1. Iodine is easily oxidised, but about 90% of all iodine found in natural freshwater occurs as the anion i. Radioactive iodine i1 also called radioiodine i1 therapy is a treatment for an overactive thyroid, a condition called hyperthyroidism. That is, about one atom of iodine 129 and three atoms of iodine 1 are produced per 100 fissions. I 1 can also be used to take pictures of the thyroid gland, although it is rarely used due to the harmful effects it has on thyroid cells.
Thyroid monitoring is also required if individuals are. Hyperthyroidism can be caused by graves disease, in. I am a permanent resident as a direct result of refugee. Iodine 129 is present in spent nuclear fuel, highlevel radioactive wastes. Although woods work was done with iodine1, other iodine isotopes should behave similarly. Iodine 1 treatment for differentiated thyroid carcinoma. When a small dose of radioactive iodine i 1 an isotope of iodine that emits radiation is swallowed, it is absorbed into the bloodstream and. Woods results showed that the reaction of methyl iodide with the teda impregnant follows first order kinetics, i. No special radiation precautions are necessary after a thyroid scan or raiu.
A40 february 2014 with 52 reads how we measure reads. It is employed in medicine to monitor thyroid gland functioning, to treat goitre and thyroid cancer, and to locate tumours of the brain and of the liver. Iodine is a volatile element and atmospheric migration is a peculiar feature of iodine geochemistry, volatilisation of iodine being. I am a permanent resident or conditional resident of the united states, and i am applying for a reentry permit. Iodine1 was the main contributor to the thyroid doses, received mainly via internal irradiation within a few weeks after the accident, while 7cs was, and still is, the main contributor to the doses to organs and tissues other than the thyroid, from either internal or external irradiation, which will continue to be received at low dose rates for several decades. During the decay process, xrays and gamma rays with energies from 3 kev to 723 kev are also emitted.
Srm 4401l is a radioactive material, iodine 1, with a massic activity of approximately 5 mbqg. Safety data sheet creation date 12nov2009 revision date 17jan2018 revision number 3 1. Iodine value 78 melting point oc 79 85 specific gravity 0. Iodine 1 is an artificially produced fission byproduct resulting from nuclear weapons, aboveground nuclear testing, and nuclear reactor operations. Iodine 1 is a radioactive form of iodine, emitting beta radiation that destroys cancer cells. Contamination on the skin or inhalation from air containing iodine vapors will result in internal deposition. It is also used in investigations to trace the course. Hicon kit for the preparation of sodium iodide i 1. Rp gn009 safe working with iodine1 risk iodine1 is a beta and gamma emitter. About 70% of activity inhaled is deposited in the body and about 30%. Gamma energies beta energies 364 kev 82% abundance 637 kev 7% abundance. T00086 synonyms no information available recommended use laboratory chemicals.
767 821 1226 543 612 1151 215 121 294 988 335 497 428 1358 689 279 261 207 115 299 1366 189 704 219 632 1181 455 1160 454 955 229 283 269 1453 1355 39 1186