Question

Radioactive nuclei that are injected into a potient collected at certain sites within its body, undergoing radioactive decay and emitting electromagnetic radiation. These radiations canthen be recorded by a detector. This procedure provides an important diagnostic tool called:

• A. gamma camera
• B. CAT scan
• C. radiotracer technique
• D. gamma ray spectroscopy

Answer 1

Answer: (C)

radiotracer technique

Certain radioactive nuclei are injected into a patient, collected at certain sites within its body, undergo radioactive decay and emit electromagnetic radiation. These radiations can then be recorded by a detector. This procedure provides an important diagnostic tool called radiotracer technique.
In radiotracer technique, we trace the existence of a nucleus by detecting the radiation emitted by it if the nucleus is a radioactive one. Thus we can identify the path through which the radioactive nucleus travels in the body.