A PET-CT scan is a medical imaging test that combines two technologies, Positron Emission Tomography (PET) and Computed Tomography (CT), to provide detailed images of your body. This brochure is designed to help you understand the PET-CT scan, how to prepare for it, and what to expect during and after the procedure.


It is important to follow these instructions carefully to ensure accurate results. Here are some general guidelines:

  • Fasting: You may be asked to fast for a certain period of time before the scan, typically 4-6 hours.
  • Medications: Inform your doctor of all medications you are taking, including over-the-counter medications, vitamins, and supplements. Some medications may interfere with the scan or require special preparation.
  • Diabetes: If you have diabetes, you may need to adjust your insulin or oral medication before the scan.
  • Clothing: Wear comfortable, loose-fitting clothing. Avoid wearing jewelry or clothing with metal zippers or snaps.


The PET-CT scan is a painless procedure that usually takes between 60-120 minutes. Here’s what to expect during the scan:

Tracer injection: A small amount of a radioactive tracer will be injected into your body, typically through a vein in your arm. The tracer helps highlight areas of your body being scanned. Uptake Waiting time: After the injection you will relax in a comfortable room to allow the tracer to distribute to all your body. There is no side effects and you are allowed to drink water and to go to the toilet if needed. This part will take around 45-60 minutes
Imaging: You will lie on a table that moves through the PET-CT scanner, which takes pictures of your body. You will need to remain still during the scan to ensure clear images. Scan duration can take between 20 to 45 minutes.
Relax: You will be asked to relax and breathe normally during the scan.


After the scan, you may resume normal activities unless your doctor instructs otherwise. It is important to drink plenty of fluids to help flush the tracer out of your system. Here are some other things to keep in mind:

Results: Your doctor will review the results of your PET-CT scan and discuss them with you. Depending on the findings, additional tests or treatments may be recommended.
Radiation exposure: PET-CT scans involve exposure to a small amount of radiation. While the risk of harm is low, it is important to inform your doctor if you are pregnant or may be pregnant, as radiation can harm the developing fetus.


A PET-CT scan is an important diagnostic tool that can help detect and monitor certain medical conditions. By following your doctor’s instructions and understanding what to expect during and after the scan, you can help ensure accurate results and a successful outcome. Our team is completely available to any question you may have and we are here to make your journey thought this test as comfortable as possible.


For booking please contact :

Sameer Reeshi:0553437927

If you have any questions or concerns about your PET-CT scan, please do not hesitate to contact our department:
TEL: 04 378 6859
Email: nuclearmedicine@azhd.ae


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