How long are you radioactive after a PET scan?

With a PET or a PET/CT scan, you will give off very low levels of radiation for around 6 hours afterwards. As a precaution, you should avoid being close to women who are pregnant during this time. It should also be safe to be around adult pets, as long as they are not pregnant.

What are the indications for PET scan?

What are the generally accepted indications for a PET scan?

• Oncology: diagnosis of malignancy, staging, tumour characterisation, response assessment, restaging and surveillance.
• Infection/inflammation: pyrexia of unknown origin, rheumatologic diseases, such as vasculitis.
• Neurology: epilepsy, dementia.

How many PET scans are safe?

“With the CMS requirement that there be no more than three PET/CT scans covered after the first line of treatment, that’s looking at it in a depersonalized way that may be harmful to patients on an individualized basis,” Copeland says.

Are PET scans high in radiation?

A PET/CT exposes you to about 25 mSv of radiation. This is equal to about 8 years of average background radiation exposure.

What should I avoid after a PET scan?

Foods Not Allowed

• No cereals.
• No pasta.
• No dry beans.
• No fruit and fruit juices.
• No sugar, honey, desserts or candy.
• No starchy vegetables, such as peas, corn, potatoes.
• No alcohol.
• No nutritional shakes or smoothies.

How long does a PET scan take for lungs?

The test takes about 90 minutes. PET scans are performed along with a CT scan. This is because the combined information from each scan provides a more complete understanding of the health problem.

How do you prepare for a PET scan of the lungs?

1. 48 Hours Before Your Appointment. Do not do any strenuous exercise or deep-tissue massage.
2. 24 Hours Before Your Appointment. Stay on a VERY LOW-carbohydrate, NO-sugar diet. Please see Low-Carbohydrate Diet Guidelines below.
3. 6 Hours Before Your Appointment. Do NOT eat anything; drink only water.