Monitor 4 times a day: before three meals and before going to bed
Monitor 7 times a day: before the three meals, 2 hours after the three meals, before going to bed, and if necessary, in the middle of the night.
Measures should be taken immediately when hypoglycemia occurs (drink appropriate amount of sugar water, etc.).
If you have high blood pressure and take measures (inject appropriate amount of insulin, etc.), you should also be monitored in time if you feel unwell after 1.5 hours.