A PET scan involves the injection of:
Correct answer: A. radioactive sugar
- A. radioactive sugar
- B. iodine
- C. metal particles
- D. xenon gas
Explanation
PET uses a radioactive tracer, commonly a glucose-like sugar such as fluorodeoxyglucose, to show areas of metabolic activity in the brain. Iodine is more associated with some other imaging procedures.
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