December 27, 2022
Tests include: 1)A1c. Also called a glycated hemoglobin test, this measures your average blood sugar level for the past 2 or 3 months. You don’t need to fast or drink anything special for this test. An A1c level of 6.5 or higher shows you have diabetes. Below 5.7 is normal. 2)Fasting blood sugar. After you fast overnight, your blood is tested. A level higher than 126 mg/dL or higher on two tests shows diabetes. Below 100 mg/dL is normal. 3)Oral glucose tolerance. After you fast all night, you give a blood sample both before and 2 hours after you finish a sweet drink. Blood sugar levels of more than 200 mg/dL after 2 hours means you have diabetes. Less than 140 mg/dL is normal. 4)Random blood sugar. You give blood at a random time. A level of 200 mg/dL or higher shows diabetes. You'll need these done twice to make a firm diagnosis.