What is a PET/CT cardiac stress perfusion scan?

A PET/CT cardiac stress test, is a way to take pictures of blood flow to your heart muscle. Photos are captured when you are at rest and again after a stress test.

Why might I need PET/CT cardiac stress test?

There are several reasons your physician may recommend this test. You may exhibit risk factors or signs of heart disease. This test is also ordered to monitor known heart disease, for pre-surgical clearance and pre-pulmonary rehabilitation.

Getting ready for a PET/CT cardiac stress test:

  • Bring all your current medication and inhalers.
  • Do not eat or drink six hours prior to your test.
  • Do not to consume any caffeinated products 24 hours before your test including:
    • Coffee
    • Tea
    • Soda (including decaffeinated varieties)
    • Chocolate
    • Any medications that contain caffeine
  • Take normal medication the morning of test with a little water.
  • Do not take Theophylline 24 hours before test.

Avoid Viagra and similar medications 48 hours before test.

  • Wear comfortable clothing with no snaps or metal on your shirt.
  • Leave all jewelry at home.

How long does the test take?

Approximately one hour.

What happens during the Lexiscan stress test?

After medical history is reviewed and paperwork completed, an IV is placed in your arm/hand. Electrodes (metal plates) are placed on your chest to monitor your heart during the test. A small amount of radioactive tracer is injected through your IV. Pictures are captured for about eight minutes that show blood flow to your heart at rest.

After the first round of images are taken, the stress portion of the test is performed. Medication is given to stress your heart. Immediately after the stress medication, a second dose of radioactive tracer in administered and imaging is captured while your heart is in stress. These images show blood flow to your heart when stressed.

Can I bring someone with me to the test?

Yes, but this person can only be in the exam room with you while we explain the test. Once your

test begins, only your medical team involved in your test can be in the room.

After the procedure:

A cardiologist will interpret your test and send the results to your ordering provider. Your provider

will discuss the results with you at your follow-up appointment. If you do not have an appointment,

please contact your provider’s office to determine how to get your results.

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