Cancerous thyroid is treated
Correct answer: C. Iodine-131
- A. Chlorine-36
- B. Cobalt-60
- C. Iodine-131
- D. Radium-226
Explanation
Iodine-131 is used in the diagnosis and treatment of thyroid disorders, particularly hyperthyroidism and thyroid cancer. It is taken up by the thyroid gland, where its radioactive decay helps to destroy overactive thyroid tissue or cancerous cells.
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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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