I have been instructed not to consume caffeine 24 hours prior to my cardiolite stress test, and to fast the morning of the test.
I understand that caffeine affects the heart, and so will avoid caffeine even though it means a headache.
It is very difficult for me to fast. Although I am healthy, I am used to eating something every 2-3 hours. When I do not, I feel lightheaded and weak and miserable, and cannot imagine getting on a treadmill. Breakfast would not interfere with hard exercise (I always eat breakfast before my morning workout). Is there a medical reason to avoid food, or is it just for comfort while exercising?
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