Tests and Procedures

Positron emission tomography scan

Risks

For your PET scan, a radioactive drug (tracer) will be injected into a vein. Because the amount of radiation you're exposed to in the tracer is small, the risk of negative effects from the radiation is low. But the tracer might:

  • Expose your unborn baby to radiation if you are pregnant
  • Expose your child to radiation if you are breastfeeding
  • Cause an allergic reaction, although this is rare

Talk with your doctor about the benefits and risks of a PET scan.