The radioisotope used for ablation of thyroid gland is
**Core Concept**
The question tests the knowledge of nuclear medicine, specifically the use of radioisotopes in the treatment of thyroid disorders. **Radioiodine therapy** is a common method for ablating the thyroid gland.
**Why the Correct Answer is Right**
The correct answer is related to the use of **Iodine-131**, a radioactive isotope of iodine, which is selectively taken up by the thyroid gland. This property makes it ideal for treating thyroid conditions, such as hyperthyroidism and thyroid cancer, by destroying part or all of the thyroid gland.
**Why Each Wrong Option is Incorrect**
**Option A:** Incorrect because it is not typically used for thyroid ablation.
**Option B:** Incorrect as it is not the standard radioisotope for this purpose.
**Option C:** Incorrect because, although it might be related to nuclear medicine, it is not used for thyroid gland ablation.
**Clinical Pearl / High-Yield Fact**
Remember that **Iodine-131** is the most commonly used radioisotope for thyroid ablation due to its selective uptake by the thyroid gland, allowing for targeted treatment with minimal damage to surrounding tissues.
**Correct Answer:** D. Iodine-131