what should a normal glucose reading be
Impaired glucose tolerance is diagnosed as: Normal, it the meter reading is under 7.8 mmol/l (140 mg/dl). Prediabetes, if itâs between 7.9 to 11.1 mmol/l (141 to 200 mg/dl). Diagnosis of diabetes, if the level is more than 11.1 mmol/l (200 mg/dl).