![]() ![]() ![]() You rest and remain silent in a reclining chair for 30 to 60 minutes while the tracer is absorbed by your body. You may briefly feel a cold sensation moving up your arm. When you arrive for your scan, you may be asked to:Ī member of your health care team injects the tracer into a vein in your arm or hand. The PET-CT or PET-MRI scanner is a large machine that looks a little like a giant doughnut standing upright, similar to CT or MRI scanners.įrom start to finish, the procedure takes about two hours to complete and typically does not require an overnight hospital stay. A general rule is to avoid strenuous exercise for a couple of days before the study and to stop eating four hours before the scan. Your provider will give you detailed instructions on how to prepare for your scan. If you're afraid of enclosed spaces, a condition known as claustrophobia.If you're pregnant or you think you might be pregnant.If you're taking any medicines, vitamins or herbal supplements.If you've been sick recently or you have another medical condition, such as diabetes.If you've ever had a bad allergic reaction.Talk with your health care provider about the benefits and risks of a PET scan. Cause an allergic reaction, although this is rare.Expose your child to radiation if you are breastfeeding.Expose your unborn baby to radiation if you are pregnant.Because the amount of radiation you're exposed to in the tracer is small, the risk of negative effects from the radiation is low. For your PET scan, a radioactive drug called a tracer will be injected into a vein. ![]()
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