For hypertensive patients and healthy people self-monitoring blood pressure, you need to often contact the sphygmomanometer, there are many types of sphygmomanometers, the common is the electronic sphygmomanometer and mercury sphygmomanometer, that life we should use which sphygmomanometer to measure blood pressure the most accurate that? In fact, many people in life are obsessed with the purchase of mercury column sphygmomanometer, we feel that it is more accurate than the electronic sphygmomanometer detection (ask yourself, are you also this?). . In fact, as a doctor, before I was really engaged in clinical work, I also had this cognitive error, thinking that the mercury sphygmomanometer is more accurate than the electronic sphygmomanometer, is the “gold standard” of blood pressure detection, this is a misunderstanding, these two non-invasive blood pressure measurement methods are through their own skills to get close to the real blood pressure data, from The difference in terms of accuracy is not particularly large, but there are subtle differences, and the following table shows the differences. The above comparison shows that when it comes to blood pressure measurement, as long as the application of automatic electronic blood pressure monitors validated by international standards, compared to mercury column blood pressure monitors, there are advantages such as ease of operation, safety and small errors. The “China Blood Pressure Measurement Guide” and “China Hypertension Prevention and Control Guide” are also the first to recommend electronic sphygmomanometers. The standard electronic sphygmomanometer can automatically provide blood pressure and heart rate, reducing the preference and subjective bias in the selection of the tail of blood pressure values; it is also able to store data for later analysis. The current trend is that automatic sphygmomanometers are gradually replacing traditional mercury sphygmomanometers, and many large clinical studies at home and abroad have used automatic sphygmomanometers instead of mercury sphygmomanometers to measure blood pressure. After the above analysis, we can boldly use electronic blood pressure monitor to measure blood pressure in our daily life without worrying about its accuracy. What do we need to pay attention to in the measurement process of the electronic sphygmomanometer? Because the electronic sphygmomanometer cuff at the same time both blocking blood vessels and signal perception function, cuff and cuff tube placement will affect its accuracy, to pay attention to the cuff and cuff tube proper placement. The cuff should be kept still during measurement. Signal strength (e.g., weak pulse), environmental noise, and heart rate variability (e.g., atrial fibrillation) may affect its accuracy to some extent, and care must be taken before use. When the battery is close to depletion and the voltage is low, blood pressure measurement may not be accurate, and it is necessary to check the power frequently and replace the battery in time. Regular calibration and overhaul.