Home » Partners » Patient Resources » What to Expect

What to Expect


PET and PET/CT Scan Preparation:
  • Upon arrival you will complete some administrative paperwork. 
  • You will be asked to drink an 18 oz. bottle of water. 
  • The technologist will take you to a prep room and explain the PET scan in detail. Please notify the technologist if you are pregnant. 
  • The technologist will start an I.V. of normal saline. 
  • You will receive an injection of a small amount of radioactive sugar (see "How Does PET Work") 
  • You will relax on a bed for 90 minutes. During this time you will get a small amount of a diuretic through your I.V.. After 90 minutes, the PET scan will begin. During the scan you will be asked to lie flat on your back for 1 hour. Many patients relax enough to fall asleep during the scan.

PET/CT Scan:

  • Upon arrival you will complete some administrative paperwork. 
  • You will be asked to drink an 18 oz. bottle of water. 
  • The technologist will take you to a prep room and explain the PET scan in detail. Please notify the technologist if you are pregnant. 
  • The technologist will start an I.V. of normal saline. 
  • You will receive an injection of a small amount of radioactive sugar (see "How Does PET Work") 
  • You will relax on a bed for 90 minutes. During this time you will get a small amount of a diuretic through your I.V.. 
  • You will also be asked to drink some water that contains a small amount of x-ray dye. Please notify the technologist if you are allergic to iodine or CT dye. 
  • After 90 minutes, the PET scan will begin. During the scan you will be asked to lie flat on your back for 45 minutes. Many patients relax enough to fall asleep during the scan.