Glucose test - blood
Alternate Names : Random blood sugar, Blood sugar level, Fasting blood sugar
Levels vary according to the laboratory, but in general up to 100 milligrams per deciliter (mg/dL) are considered normal.
Persons with levels between 100 and 126 mg/dL may have impaired fasting glucose or prediabetes. These levels are considered to be risk factors for type 2 diabetes and its complications.
Diabetes is typically diagnosed when fasting blood glucose levels are 126 mg/dL or higher.
Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.
What do Abnormal Results Mean?
Greater than normal levels (hyperglycemia) may indicate:
Lower than normal levels (hypoglycemia) may indicate:
This test also may be performed for: