Sphygmomanometers on the market can be roughly divided into mercury column type and electronic type. The mercury column type has simple structure and good stability. Medical textbooks suggest that the results of this measurement shall prevail. However, it also has disadvantages such as large volume, not portable, mercury easily leaks, cannot be operated alone, and requires training to use. Generally used in medical institutions. Due to mercury pollution, mercury sphygmomanometers have been banned in some to use. Generally used in medical institutions. Due to mercury pollution, mercury sphygmomanometers have been banned in some European countries such as France.
The electronic sphygmomanometer is easy and fast to operate, clear readings, and can be operated independently without pollution. However, many people think that the electronically measured value will be low and cover up the condition. In fact, if used correctly, the accuracy of electronic sphygmomanometers is almost the same as that of mercury, and it is even more accurate because there is no human error. Many hospitals use electronic sphygmomanometers extensively, and mercury sphygmomanometers are used only when the results are doubtful. verification.
In fact, any sphygmomanometer will be calibrated when it leaves the factory, and the accuracy will inevitably decrease after using it for a long time. The frequency of use of home sphygmomanometers is far less than that of hospitals, so the accuracy will not drop quicly.
Mercury sphygmomanometers have high requirements on the measurer, preferably medical staff, who need to concentrate on listening to pulse sounds, and are prone to measurement and recording deviations, which are not suitable for most households.
Common electronic sphygmomanometers include upper arm type and wrist type. The upper arm type and the mercury column type both measure the blood pressure of the upper arm. The results of the two are relatively close, and it is simple to use. It is also the recommended family sphygmomanometer in my country’s hypertension guidelines. However, it should be noted that a large eror may be caused when the battery is low.
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Post time: Mar-08-2022