Cancerous tissue in a thyroid gland can be detected by the intake of:
Correct answer: A. Radioactive Iodine
- A. Radioactive Iodine
- B. Radioactive Carbon
- C. Radioactive Sodium
- D. Radioactive Phosphorous
Explanation
Radio-Iodine is absorbed mostly by the thyroid gland. Radioactive Iodine, often in the form of Iodine-131 (I-131), is commonly used in the diagnosis and treatment of thyroid conditions, including thyroid cancer. The thyroid gland naturally takes up iodine to produce thyroid hormones. Radioactive Iodine can be administered to a patient, and the thyroid gland preferentially absorbs it. By detecting the radioactive emissions from the iodine, such as gamma rays, medical professionals can identify thyroid tissue abnormalities, including cancerous growths.
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