2, don't just count your blood pressure once, measure your blood pressure several times a day and record it, so that you can understand the changes in your blood pressure in one day.
3. At present, most sphygmomanometers on the market are mainly electronic, and their measurement results are usually slightly higher than those of traditional mercury sphygmomanometers. Electronic sphygmomanometer is divided into wrist type and arm type. Although the wrist shape is more convenient to use, the farther away from the heart, the greater the difference in measurement results. It is recommended that you can test it on the spot when purchasing. If there is little difference between the results measured by arm type and wrist type, both can be used. If there is a big difference, it is better to choose the arm type.
4. It's best to take blood pressure when relaxing at home, because some people feel nervous when taking blood pressure in medical institutions, which leads to an increase in blood pressure. Medically called "white hypertension", measuring blood pressure at home can overcome this situation.
5, the traditional mercury sphygmomanometer will be affected by thermal expansion and contraction, and the zero position should be calibrated once every six months on average.