PET/CT Frequently Asked Questions

1. What is a PET/CT scan?

A PET/CT scan is completely painless, with no side effects. After fasting 4-6 hours, you will receive an intravenous injection of radioactive glucose tracer. There is no danger from this tracer and the radiation exposure is similar to what you might receive from a CT scan. After the injection, you will need to wait about one hour to allow the tracer to be distributed throughout your body. During the scan you will be asked to lie on a padded table that passes slowly through the scanner. The scanner resembles a CT scanner, but has a much larger opening. The scan may take 15 to 20 minutes while you rest quietly and comfortably.

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2. What do I do to prepare for a PET/CT scan?

• Bring all current outside diagnostic imaging exams (CT, MRI) for comparison purposes with you to the appointment. Arrive a few minutes early to allow for check-in.
• Be on time. The radioactive glucose used during your test is timed for your appointment. 24-hour notice is required to reschedule your appointment. Charges may result without 24-hour notification to reschedule.
• If you are diabetic please inform scheduling and your technologist.
• Wear comfortable clothing. Glasses, dentures, and hearing aids can be worn safely.
• Avoid physical exertion for 48 hours prior to the scan. This includes manual labor or routine exercise even though you may be used to doing it. If you have any questions, please ask our staff.
• Eat nothing 4 to 6 hours before the scan. Blood glucose should be below 200. No caffeine, gum, candies, or mints prior to the scan.
• Take prescribed medications. If anti-anxiety or pain medication has been ordered, please bring these to your appointment with you.

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3. How much time should I allow for a PET/CT scan?

You can expect to be at Windsong Radiology Group for approximately two and a half hour to three hours. The actual scan itself takes far less time. The remainder of the time will be devoted to check-in, registration, and the introduction of the radioactive glucose.

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4. What happens after the PET/CT scan?

You will not notice any unusual or lasting effects from the scan. The radioactive tracer disappears very quickly and in a matter of hours, it will be completely gone with no side effect.

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5. How do I get the results of my PET/CT scan?

One of our Board Certified, Fellowship trained Radiologists specialized in PET/CT interpretation will study your results and forward a report to your referring physician. A copy of your report will be placed in your medical imaging file as well.

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6. Will my insurance cover PET/CT scans?

Most insurance companies cover PET/CT scans although exact coverage is based on individual policy benefits. Most insurance companies require prior authorization. As a result, we may need to add two days to the scheduling process. Medicare covers a broad range of indication for PET/CT scans. Our billing specialists will make all necessary arrangement with your insurance company prior to your appointment.

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