Because PET imaging depends on visualizing the distributions of the glucose based
radiopharmaceutical throughout your body, correct preparation for your PET study
is more critical than for other commonly performed imaging studies.
Dress in warm, comfortable clothing, as some scanner rooms may be cool. Avoid wearing
jewelry or clothes with metal fasteners and zippers.
Food and Drink
Please call the imaging facility for specific instructions. Generally, the day before
your scan you'll need to be on a low carbohydrate/high protein diet and limit the amount of sugar and caffeine
you consume. On the day of the scan do not eat or drink anything except plain water
for four to six hours before your scan. Drink several glasses of water before your
scan to ensure hydration.
Take your regularly scheduled medication with water prior to arriving for your scan,
unless instructed otherwise.
Inform the imaging department ahead of time if you are diabetic to discuss specific instructions. A technologist will test your blood sugar level before the scan, it should be approximately 75-150mg/dL. A maximum of 200 mg/dl is acceptable for performing this exam. If higher on the day of scanning we may need to reschedule the exam for another day.
For 24 hours prior to your exam, refrain from physical activity such as working out, jogging, heavy lifting, and long walks.
How Long Will the Scan Take?
You should plan on spending at least two hours at the imaging facility. There is a 60-minute resting period before imaging. Your actual scan will take approximately 15-35 minutes, depending on the type of scan you are having.
What to Expect
The following information will help you prepare for your appointment at the imaging
The scanner rooms can sometimes be cool, so we suggest that you wear warm comfortable
clothing. You should avoid wearing jewelry or clothes with metal fasteners or zippers.
You will be given specific preparation instructions regarding
food and drink, but generally you will be instructed not to eat or have any liquids,
except water, for at least four to six hours before your scan. In addition, refrain
from strenuous physical activity for 24 hours prior to your exam, such as working
out, jogging, heavy lifting, etc.
If possible, bring copies of your most recent CT, X-ray, or magnetic resonance imaging
(MRI) films with you on the day of your PET/CT scan.
Be prepared to stay at the imaging facility for approximately two to three hours.
You will be asked to lie quietly for approximately 60 minutes before the scan, and
to lie still for approximately 30 minutes while the scan is being performed.
Before arriving at the imaging facility you should carefully follow the
patient preparation instructions. Correct preparation for your PET/CT study
is very important.
Once at the imaging center,
you will be asked to complete the necessary paperwork to begin the procedure. Be
sure to bring your insurance cards with you to ensure accurate billing. It may also
be helpful to bring a list of any medications you are currently taking.
A technologist will test your blood sugar level before the scan, it should be approximately 75-150mg/dL. A maximum of 200 mg/dl is acceptable for performing this exam. If higher on the day of scanning we may need to reschedule the exam for another day.
You will receive an intravenous injection and then you will be asked to rest quietly
for approximately 60 minutes. After this resting period you will empty your bladder
and the technologist will escort you into the scanning room where you will lie down
on the scanner table. It is important to be comfortable and lie as still as possible
for 15-35 minutes as the table passes slowly through the scanner acquiring several
sets of images. A PET or PET/CT scan is fast straight forward and painless.
Following the Scan
Once the PET/CT scan is complete, you will be able to leave the imaging facility.
Make sure you drink plenty of water or other fluids throughout the day.
The results of your scan will be interpreted by a radiologist and your physician will receive a written report approximately 24 to 48 hours after completion of the study.
Please contact your physician to discuss the results.
Indications & Safety Information
PET/CT imaging is a safe, noninvasive
nuclear medicine or molecular imaging procedure.
Radiopharmaceuticals are approved by the Food and Drug Administration and prepared
with great care. They are tested carefully prior to general use. Nuclear imaging
has been used for more than five decades and side effects are rare. While exposure
to radiation does involve risk, naturally occurring background radiation and activities
such as watching television and flying in an airplane all contribute to a lifetime
exposure that is only slightly increased by medical imaging. Your physician has
determined that the benefits of early and accurate diagnosis outweigh the risk of
exposure to this small quantity of radioactive material.
and Important Safety Information
FLUDEOXYGLUCOSE F 18 INJECTION, USP
For Intravenous Use
INDICATIONS AND USAGE
Fludeoxyglucose F 18 Injection is indicated for positron emission tomography (PET)
imaging in the following settings:
For assessment of abnormal glucose metabolism to assist
in the evaluation of malignancy in patients with known or suspected abnormalities
found by other testing modalities, or in patients with an existing diagnosis of
IMPORTANT SAFETY INFORMATION
Radiation-emitting products, including Fludeoxyglucose
F 18 Injection, may increase the risk for cancer, especially in pediatric patients.
Use the smallest dose necessary for imaging and ensure safe handling to protect
the patient and health care worker.
Blood Glucose Levels:
In the oncology and neurology setting, suboptimal
imaging may occur in patients with inadequately regulated blood glucose levels.
In these patients, consider medical therapy and laboratory testing to assure at
least two days of normoglycemia prior to administration.
Hypersensitivity reactions with pruritis, edema and rash have occurred; have emergency
resuscitation equipment and personnel immediately available.
PETNET Solutions, 810 Innovation DRive, Knoxville, TN 37777