2. The anatomic or functional manifestations of a disease: the pathology of cancer. 3. A departure or deviation from a normal condition: Neighborhoods plagued by a self-perpetuating pathology of joblessness, welfare dependency, crime (Time).
1 A fasting blood sugar level from 100 to 125 mg/dL (5.6 to 6.9 mmol/L) is considered prediabetes. If it's 126 mg/dL (7 mmol/L) or higher on two separate tests, you have diabetes.  Oral glucose tolerance test. For this test, you fast overnight, and the fasting blood sugar level is measured.
Quick Answer. In a nondiabetic adult, a normal fasting blood sugar level can range from 70 to 100 milligrams per deciliter, and a normal result for a random blood sugar test is lower than 125 milligrams per deciliter, states MedlinePlus. Blood glucose levels vary according to factors, such as the time of day when a blood glucose test is performed.