For six hours before your test, do not eat or drink (except water); do not even chew gum. Your last meal should be high in protein and low in carbohydrates.

 

Take medication as prescribed, but if taken with food try to eat a few soda crackers only four to eight hours prior to your exam. If you have diabetes, call the Lafayette General Imaging staff at least 48 hours before your appointment.

 

Most people receive the radiopharmaceutical (called FDG) intravenously, a procedure that is usually painless. You will then rest quietly for about 60 to 90 minutes to allow the FDG to distribute throughout your body. The scan itself will take between 15 and 40 minutes.