PET/CT – FDG

Examination Instructions


Arrival time for appointment

PLEASE ARRIVE 30 MINS PRIOR TO YOUR SCAN TIME. LATE ARRIVALS MAY RESULT IN RESCHEDULING OF YOUR SCAN TO A LATER DATE. Patients that do not show or cancel less than 24 hours prior to their appointment may be charged.


Appointment Instructions

Allow up to 1 ½ – 2 hours for the total exam process

To ensure the safety of our patients and staff, only the patient will be allowed into the scan area. Anyone that accompanies the patient will be limited to the waiting area and may be allowed in patient areas at the sole discretion of the staff. Thank you for your understanding.

  • Follow Hydration instructions below.
  • No food (including no gum) or other liquids (coffee, tea) 4 hours prior to appointment.
  • Take your medications except cough syrup or vitamins.
  • If you are diabetic – please follow separate instructions specific to Diabetic Patients. For diabetic the instructions Click Here.
  • Wear comfortable clothing without metal clasps or zippers.
  • No exercise 24 hours prior to your exam.
  • No reading or phone use is allowed while in uptake – however, you may use electronic devices (CD, radio or iPods).

BREASTFEEDING: For PET Scan patients, please wait 24 hours after scan before resuming breastfeeding.


Hydration Instructions:

  • If patient is on fluid restriction, refer to ordering MD for hydration instructions
  • Beginning 3 hours before your scheduled exam time, drink 1 glass of water every hour, for a total of 3 glasses.
    • For example: A 12:00 appointment would have a person drinking one glass of water at 9:00, 10:00, and 11:00.
  • Voiding is allowed; a full bladder is not necessary. Continue to drink water couple hours after the scan to flush your system.