It is unscientific to buy a home blood glucose meter, check blood sugar too many times or too little, and control blood sugar too high or low. The basic principle of blood glucose testing is that the more unstable the diabetes is, the more monitoring is needed. The significance of blood glucose values detected at different time points is different.
Blood glucose half an hour before a meal is good for detecting hypoglycemia;
The blood glucose of 2 hours after a meal is good for detecting hyperglycemia. It is a sensitive indicator of diabetes control and can better reflect whether eating and using hypoglycemic drugs are appropriate;
Nocturnal and fasting blood glucose is helpful to find night and fasting hyperglycemia or hypoglycemia, and it is convenient to find out the cause of blood glucose fluctuation.