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PET (positron emission tomography) scan

Written by the Fiveable Content Team • Last updated August 2025
Verified for the 2026 exam
Verified for the 2026 examWritten by the Fiveable Content Team • Last updated August 2025

Definition

A PET scan is a type of imaging test that helps reveal how your tissues and organs are functioning by using a radioactive drug to show activity.

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