Diabetes screening requires fasting, without eating or drinking for 12 consecutive hours, followed by a blood draw. After the first blood draw, consume about 75g of sugar, put the 75g of sugar into 300ml of water, drink the sugar water within about 5 minutes, and then start timing from the first sip of sugar water, and have the second blood draw after 1 hour; have the third blood draw after 2 hours; and sometimes have the fourth blood draw in the third hour after drinking the sugar water, which is the diabetic screening This is the specific operation process. The above is for reference only. Please refer to the doctor’s instructions for specific medication and treatment.