Which diagnostic test is useful for detecting hyperactivity of the thyroid gland during an evaluation of a thyroid disorder?

Question

Quizplus · Accepted Answer

A radioactive iodine scan is useful for detecting hyperactivity of the thyroid gland by measuring the uptake of radioactive iodine by the thyroid tissue. This can help diagnose conditions such as hyperthyroidism or Graves' disease. Sestamibi scans and CT scans of the anterior neck are not typically used to evaluate thyroid function. Ultrasound may be used to evaluate the size and appearance of the thyroid gland, but it does not measure thyroid function.

Which Diagnostic Test Is Useful for Detecting Hyperactivity of the Thyroid