How you prepare

By Mayo Clinic Staff

Tell your doctor:

  • If you've ever had a bad allergic reaction
  • If you've been sick recently or you have another medical condition, such as diabetes
  • If you're taking any medications, vitamins or herbal supplements
  • If you're pregnant or think you might be pregnant
  • If you're breast-feeding
  • If you're afraid of enclosed spaces (claustrophobic)

Your doctor will give you detailed instructions on how to prepare for your scan. A general rule is to avoid strenuous exercise for a couple of days before the study and to stop eating a few hours before the scan.

May. 06, 2014