Blood pressure measuring instrument generally have electronic sphygmomanometer and mercury sphygmomanometer, electronic sphygmomanometer can directly read the measurement display results, mercury sphygmomanometer recommended by the doctor to measure and read.
1. Electronic sphygmomanometer: electronic sphygmomanometer measurement is more convenient, measurement of the cuff and the heart flush, after the start of the measurement, the sphygmomanometer will automatically measure the measurement will show the value of the measurement, the general high value of systolic blood pressure, the low value of systolic blood pressure, there may also be the number of pulse.
2. Mercury sphygmomanometer: a traditional sphygmomanometer, you need to use a stethoscope for auscultation, the mercury column hit can not be heard blood vessel pulsation, and then began to deflate, when you hear the first blood vessel pulsation of the mercury scale for systolic blood pressure, and continue to deflate, when you hear the last blood vessel pulsation of the mercury scale for the diastolic blood pressure. It generally requires a healthcare professional to operate.
Because of the ease of operation, cuff-type electronic sphygmomanometers are generally recommended for blood pressure measurement. If there is any abnormality in blood pressure, it is recommended to consult a doctor promptly.