understanding the characteristics of electronic sphygmomanometer and use according to the division of the position measurement method
, household electronic blood pressure meter can be divided into type two kinds big wrist and arm. With the upper arm blood pressure measuring arm, its accuracy has been officially confirmed , according to the standard mercury sphygmomanometer at. Moreover, the method is relatively simple, and the error is not caused by improper method. But when the measurement to strip sleeve, can not be separated too many clothes. In addition, tie cuff when too tight or too loose will affect the measured value, usually tied good cuff inflation, can accommodate a finger gap better.
wrist sphygmomanometer arm belt more convenient than , but its use is very important. First, pay attention to the position of the wrist when the pressure measurement. If it is sitting manometry, the wrist should be in equal position with heart, roughly equivalent to the level of the mammillary; if is supine manometry, wrist and put it on the bed, the measured pressure will be slightly higher, as a result of the wrist position below heart level centimeter about 4.4. Secondly, the palm position on blood pressure also has certain influence, and palm to palm bending, blood pressure will be higher; if bent to the back, blood pressure is under the palm of the hand horizontally.
therefore, if you want to repeat the measurement, must be in the same condition. Sit (horizontal) position, position of the wrist, hand gesture, wrist position also don't move. Moreover, repeated measurements should be at least 2 minutes apart, and in the measurement before the air inside the gas exhausted. Compared to the
wrist and arm belt type blood pressure meter to measure the blood pressure, the readings are not necessarily the same, generally take the average value . To understand your personal, the wrist sphygmomanometer and mercury blood pressure meter, were placed on your left and right hand, ask the doctor to measured at the same time, see how much difference. As the left and right blood pressure itself is a little different, you can exchange the blood pressure of the left and right hands and then measured again, take the average value of two times.
proportion of the blood viscosity is high, poor microcirculation, such as diabetes, arteriosclerosis, these people would not use wrist mounted; if you want to use, understand it and arm belt the measuring value of gap.