Many hypertensive patients have some doubts about the accuracy of the electronic sphygmomanometer. When measuring blood pressure, they are not sure whether their own measurement is accurate. At this time, people can use blood pressure to quickly correct the accuracy of the electronic sphygmomanometer, find their own measurement bias, and then measure blood pressure accurately. So, how to calibrate the electronic sphygmomanometer?
First of all, electronic sphygmomanometer is a medical device that uses modern technology to stop measuring blood pressure. Most patients with hypertension have spare devices at home. Electronic sphygmomanometer can be divided into arm type and wrist type; Its technology has experienced the development of the first generation, the second generation (semi-automatic sphygmomanometer) and the third generation (intelligent sphygmomanometer). Electronic sphygmomanometer has become the main tool for family blood pressure measurement. Electronic sphygmomanometer are also increasingly used in hospitals and other medical institutions.
The sphygmomanometer used by the hospital should be tested and calibrated at the Quality Supervision Bureau every year. The household sphygmomanometer proposed to use the upper arm electronic sphygmomanometer. Because the trick is at the end of the artery and is far away from the heart, the measurement accuracy is reduced. In addition, the household sphygmomanometer also proposed to stop calibration every year.
The medical mercury column sphygmomanometer is used to judge whether the electronic sphygmomanometer can be accurate. The operation steps are as follows: first, measure the blood pressure with the mercury column sphygmomanometer. After 3 minutes of rest, measure the blood pressure with an electronic sphygmomanometer for the second time. Then rest for another 3 minutes and measure for the third time with a mercury column sphygmomanometer. Take the uniform values measured for the first and third times. Compared with the values measured for the second time with an electronic sphygmomanometer, the difference should generally be less than 5 mm Hg.
In addition, the wrist electronic sphygmomanometer is not suitable for the elderly. Because their blood pressure was once high and their blood thinness was high, the measurement result of this kind of sphygmomanometer was much lower than the blood pressure pumped by the heart itself, and this measurement result had no reference value.