PET scans may give false results, however, if patients have eaten within a certain time prior to the scan or if their blood sugar levels, perhaps because of diabetes, are outside the acceptable range.
Namun, PET scan bisa memberikan hasil yang tidak benar jika pasien menyantap makanan dalam kurun waktu tertentu sebelum pemindaian atau jika kadar gula darah mereka, barangkali akibat diabetes, di luar kisaran normal.