Cardiac Viability PET Scan Procedure
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Cardiac Viability PET
Cardiac Viability PET Procedure
- Schedule your appointment one day in advance.
- If your appointment was scheduled several days in advance, please confirm it with us one day before the scan.
- Schedule your appointment one day in advance.
- If your appointment was scheduled several days in advance, please confirm it with us one day before the scan.
- We will check the GRBS.
- If the sugar level is below 150, we will administer glucose followed by insulin injection as per doctors instructions to ensure that the scan images are clear, allowing doctors to differentiate between various cells.
- After giving glucose, we will wait for 45 minutes to 1 hour, depending on the doctor's instructions, and then recheck the glucose levels.
- If the levels are appropriate for the scan (150-180), we will proceed to inject FDG.
- If the sugar level is high (above 180), we will administer insulin and wait for 45 minutes to 1 hour before rechecking the levels.
- Once the sugar level is in the appropriate range, we will proceed with the FDG injection.
- If the levels remain high after the insulin, we will administer more insulin and continue monitoring until the levels are below 150. In some cases, based on the patient’s condition, we may inject insulin and FDG together as per the doctor's guidance.
- In some cases, the patient may be called the next day by reducing the GRBS levels, if they are insulin resistant, then we will call them the next day
- A cannula will be inserted by the nursing staff and FDG will be injected, if glucose is in the appropriate range, it’ll be confirmed by the doctor, it depends on individual circumstances.
- There will be a waiting period of 30 minutes to 1 hour, to prepare the drug, before injecting. In some cases, there may be no waiting period.
- Once the FDG drug is prepared, it will be injected.
- You will need to wait for 1 to 1.5 hour to allow the drug to spread throughout your body.
- After the waiting period, you will be taken for the scan, which will last approximately 15-20 minutes.
- The doctor will review the initial scan images.
- If necessary, a delayed scan will be scheduled based on your specific case.
- The timing for a delayed scan may range from 1 hour, depending on individual circumstances.
- A soft copy of your scan report will be sent to you via WhatsApp or email within 2.5 to 5 hours.
- If there is a high patient load or if the report requires consultation with the referring doctor, the report delivery time may vary.
- The hard copy of the report will be ready at the same time as the soft copy. You may collect it from the centre at your convenience, either at the time the soft copy is ready or at a later time that suits you.
Preparations For Cardiac Viability PET
Fasting
You should fast for at least 4-6 hours before the scan. This includes avoiding all food, gum, candy, and any drinks other than water. The reason for this is to minimize blood sugar levels, which can interfere with the FDG uptake by the cells.
Hydration
Drink plenty of water before the scan, typically 1-2 Litre over a few hours, but avoid any other beverages. This helps with the distribution of the FDG tracer in your body and also reduces radiation exposure by diluting the tracer in the urine.
Medication
If you are on medications that affect blood sugar, consult with your doctor for specific instructions.