The blood glucose two hours after meal can be measured by the terminal finger or by blood collection from a vein. The normal range is 4.4-7.8 mmol/L. The OGTT test can also be done for further diagnosis, and the blood glucose monitoring two hours after meals is also done by means of venous blood collection. In order to understand the situation of drug control, blood glucose is usually measured by means of peripheral blood collection and blood glucose meter.