What is a PET Scan?

A positron emission tomography (PET) uses a radiotracer to measure important body functions, such as blood flow, oxygen use, and sugar (glucose) metabolism, to help doctors diagnose, stage, and plan treatment of your disease. Remember: - Do not eat or drink anything, other than water for six hours before the test. - Drink plenty of water the day before and after the exam. To schedule an imaging exam or to speak with a radiologist -- http://www.mdanderson.org/education-and-research/departments-progra

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