Can I Have Caffeine Before A Pet Scan

Foods you can eat are limited for this type of pet scan.

Can i have caffeine before a pet scan. If you re taking a beta blocker or a calcium channel blocker consult with your doctor. Drinking coffee before having a pet scan will interfere with the results as caffeine can affect the myocardial uptake or the amount of tracer used. If your scan is the rubidium pet type you shouldn t drink caffeine or decaffeinated products such as coffee tea chocolate or sodas for 24 hours before your appointment. The heart beats faster when you drink coffee just as it does when you exercise.

Doctors will tell patients not to eat or drink anything except water for four to six hours before the scan. The heart beats faster. Therefore these foods are best avoided. Some of the other foods that can impact the results of a pet scan are sugar caffeine and tobacco.

Researchers at saint louis university have suggested that patients going for pet or ct scan should avoid drinking coffee as caffeine intake interferes with pet ct image results when there is a. Depending on the type of pet scan you have following a low carbohydrate diet 12 hours before the scan may be necessary to increase the quality of pet scan images. A pet scan measures body functions like blood flow oxygen use and the metabolism of glucose or sugar. If a person exercises before having a pet ct scan more fdg appears in the heart region obscuring the view.

Patients who had coffee before the pet scan have a higher myocardial uptake that the. This includes chocolate coffee tea soda or exedrin. The consumption of sugar and caffeine even the trace amounts found in decaffeinated products and chocolate can skew pet scan results. Researchers suggest that patients scheduled for a pet scan should avoid having coffee for sometime before the scan as even a normal amount of caffeine in the beverage can cause distortions and.

This effect is same as when the pet scan is taken immediately after the person had done some vigorous physical exercise. The researchers found that the same thing happens with caffeine. With intake of caffeine more fluorodeoxyglucose clusters around the heart making it difficult to take a look into the lesions of the heart. Body scan with fdg pet ct if you are having a fdg brain scan you must not eat or drink caffeine for 24 hours before your exam.

Decaffeinated products contain caffeine. If a person exercises before having a pet ct scan more fdg appears in the heart region obscuring the view.