definitions - understudies. understudy (n.) 1.someone who takes the place of another (as when things get dangerous or difficult)the star had a stand-in for dangerous scenes we need extra employees for summer fill-ins. 2.an actor able to replace a regular performer when required. understudy (v.)
Radiation can come in the form of a pill. Iodine (131 I) used in thyroid treatment might be given in pill form or as a liquid. The choice is an institutional decision based on many factors, including the amount to be given to a patient.
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 cellsradioactive iodine i 131 may also be used to treat thyroid cancerhen 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 radioactive iodine i 131 may also be used to treat thyroid cancer