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why the proposed averaging

Normal blood pressure at 8-10 in the morning, afternoon, 4-6 in the peak value to the night when the blood pressure decreased by 10% during the day. Therefore, a blood pressure of the moment is not representative of the overall blood pressure levels. The proposal to take the average of multiple measurements as a reference value of blood pressure levels. Or select the memory function of the electronic sphygmomanometer, to overcome the above problems caused by errors. Some arm blood pressure monitor multiple memory function, to facilitate the calculation of the average. Recorded blood pressure values ​​at the same time, should also be documented measurement date, time, location and activities in order to Physicians

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