A patient mentions, "My doctor told me I was going to have a PET scan that would show where my brain has bright spots. Does that mean I'm getting an electrical jolt like in electroconvulsive therapy (ECT)?" The best reply would be:
a. "PET scans and ECT treatments are entirely different.".
b. "A PET scan is a diagnostic test, and an ECT treatment is a form of therapy.".
c. "A PET scan involves a substance, not electricity, that travels to the brain and produces a bright spot where the brain is active.".
d. "PET scans show us the electrical activity of the brain in the form of light bands.".
C
PET scanning allows for the imaging of brain activity and function with the use of an injected radioactive substance that travels to the brain and shows up as a bright spot on the scan. There is no electrical "jolt" involved. Two of the options address an assumption made by the nurse that the patient is referring to ECT, and PET scans do not produce light bands of measurable degrees of brightness.
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