FDG PET CT Scan Procedure
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FDG PET CT SCANS
Scan 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.
- On the day of your appointment, proceed to the floor where your scan is scheduled
- At reception, your name, age, gender, referring doctor, and medical history will be recorded.
- A KNM ID will be assigned to you for identification throughout the process.
- A cannula will be inserted by the nursing staff.
- There may be a waiting period of 30 minutes to 2 hours, depending on the drug dosage and patient load. 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 45 minutes to 1 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 15-25 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 30 minutes to 1.5 hours, 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.
- 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.
Preparation For FDG PETCT
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.
Physical Activity
Avoid strenuous physical activity and repetitive motions for at least 24 hours before the scan. Such activities can cause muscles to take up more FDG, which could lead to inaccurate results.
Staying Warm
Keeping warm before and during the scan is important because being cold can activate brown fat in the body, which may absorb the FDG and interfere with the scan.
Diabetes Management
If you have diabetes, you should work with your healthcare provider to manage your blood sugar levels before the scan. It's crucial that your blood sugar levels are within a specific range during the procedure.
Medication
If you are on medications that affect blood sugar, consult with your doctor for specific instructions.
Creatinine Levels
A creatinine test must be performed within 2-3 months before the FDG PET scan. If the test was done over 3 months ago, it should be repeated to ensure levels are within the normal range (0.8-1.2/1.4 mg/dL). If necessary, we can perform this test at our center, though it may delay the scan.