Because the radioisotope used in a PET scan is short-lived,the amount of radiation exposure the patient receives is:
A)equal to two chest X-rays.
B)equal to a SPECT scan.
C)equal to that of an MRI scan.
D)equal to that emitted by BAER.

Question

Quizplus · Accepted Answer

The radioisotope used in a PET scan has a short half-life, typically between 2 to 110 minutes, which means that it decays quickly and does not stay in the body for long. As a result, the amount of radiation exposure the patient receives is relatively low, comparable to the radiation exposure from two chest X-rays. This makes PET scans a safe and effective diagnostic tool for a range of medical conditions.

Because the Radioisotope Used in a PET Scan Is Short-Lived,the