Which of the following radioactive isotopes are used to detect whether or not an individual has a healthy thyroid?

A) I¹³¹
B) C¹⁴
C) glucose
D) H₂
E) All of the answer choices can be used.

Radioactive Isotopes

Unstable atoms that decay, emitting radiation in the form of alpha, beta, or gamma rays.

Thyroid

A butterfly-shaped gland located in the neck that produces hormones regulating metabolism, energy generation, and growth.

Healthy Thyroid

A state in which the thyroid gland functions properly, producing the right amount of thyroid hormones necessary for regulating metabolism.