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.
Blood sugar levels indicate the amount of sugar or glucose absorbed into the bloodstream. Blood sugar levels that are either too high or too low can cause death. Diabetics and those with certain conditions such as hypoglycemia must maintain their blood sugar levels and monitor them closely. The normal blood sugar range is 70 to 100. A diabetic can have a level of 60 to 120 and still feel fine. A fatally high blood sugar level is anything above 550. It's possible for an adult to reach even higher levels before exhibiting any symptoms or problems. When the level reaches 600, the person develops hyperosmolar syndrome, which can cause diabetic coma and death.