Which one of the following isotopes of Iodine is used for the treatment of thyroid cancer?
Correct answer: C. I-131
- A. I-113
- B. I-120
- C. I-131
- D. I-140
Explanation
Because of this, radioactive iodine (RAI, also called I-131) can be used to treat thyroid cancer. The RAI collects mainly in thyroid cells, where the radiation can destroy the thyroid gland and any other thyroid cells (including cancer cells) that take up iodine, with little effect on the rest of your body.It is a fact.
This question appeared on the UHS MDCAT 2014 paper, which you can sit online with every answer explained.
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About Biological and Medical Uses of Radiation
Radiation in medicine includes X-rays and gamma rays for imaging, radioactive tracers for diagnosis, and controlled radiation for destroying cancerous tissue. The topic also covers CT scans, PET imaging, radiotherapy, sterilisation, half-life and dosage, alongside biological damage, shielding and the need to balance diagnostic or therapeutic benefit against exposure.
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