Multiple choice

Name the isotope used in PET scanning

  1. C11

  2. N13

  3. O15

  4. Any of these

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

PET scans use radiotracers that emit positrons. Common isotopes used include Carbon-11, Nitrogen-13, and Oxygen-15, which are all short-lived positron emitters.