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Foods to Eat Before a PET Scan. A PET (positron emission tomography) scan is a powerful process for detecting cancer. Cancer cells grow extremely fast and need a lot of glucose. A doctor will inject the patient with glucose, and the PET scanner detects if any cells are emitting signs of high glucose use. If you eat before your PET scan, you risk throwing your glucose levels off balance and getting inaccurate results.
While not every diabetic pet needs to have BGs tested at home, it is a valuable tool. This web site evolved from our personal experiences in testing Blood Glucose in our cat, Harry, with the Elite XL, using the Ear Prick method. Our methods may or may not work for you and your pet. Be flexible and try other approaches.