Diabetes screening is a compromise of two tests. Both of them have different processes of samplings; let’s understand in brief.
Fasting Blood Sugar Test:
In this test, a blood sample will be taken following an overnight fast (8 hours). Normal blood sugar levels are less than 100 mg/dl (5.6 mmol/L) in the morning. Fasting blood sugar readings of 100 to 125 mg/dl (5.6 to 6.9 mmol/L) indicate pre-diabetes. If your blood sugar level is 126 mg/dl (7 mmol/L) or above on two different tests, you have diabetes.
This blood test can detect your average glucose level for up to 2-3months. It measures the rate at which glucose is linked to Hemoglobin, the protein that transports oxygen in red blood cells. The more glucose there is in the blood, the more Hemoglobin with sugar connected to it.