Fasting blood sugar levels are measured ... starting with a fasting blood test. Next, the person drinks a sugary beverage, and the doctor takes a blood sample every 30–60 minutes over a 2 ...

Commonly performed blood tests for assessing glycemic status are fasting blood sugar, postprandial blood sugar (2 hours post breakfast) and glycated hemoglobin or HbA1c testing. HbA1c test ...