PET Scan Instructions

A PET scan, or positron emission tomography test, is used to determine the presence of cancers, diseases, or other conditions. A PET scan takes images of the chemistry of tissues and organs through the use of a radioactive substance that is injected into the patient; the subsequent radioactive emissions are recognized by the PET scan. In order to have a PET scan done, you must consult with your physician and follow specific instructions.

Instructions

Preparation for a PET Scan

• 1

  Make sure you drink clear liquids only beginning at midnight before the day of your PET scan. Furthermore, do not eat any food or drink any type of liquid in the four hours before your scheduled scan.

• 2

  Remove any jewelry that could interfere with the PET scan. You will be asked to take off clothes and jewelry when you get to the testing center; however, removing some of these items at home will be safer and easier.

• 3

  Prepare yourself for the intravenous injection of the radioactive element. A nurse or assistant will perform the injection. The substance will take from 30 to 90 minutes to reach the organs and tissues that are going to be scanned. Remain still to avoid disruption of the radioactive substance.

• 4

  Lie down on the PET scan table located outside the actual PET scanner.

• 5

  Remain still for the length of the exam, which should take anywhere from 30 to 60 minutes. The table will rotate in and out of the machine. Any movement can alter the results of the test. Ask the doctor, nurse, or technician if you can listen to music during the exam time to relax yourself.

• 6

  Wait until you are told the test is over to move or get up off the exam table. You're done!