How to measure blood pressure correctly?

The most accurate sphygmomanometer is the mercury column sphygmomanometer. The person being measured should calm his or her breathing and mood to avoid inaccurate measurements.

Then remove the sleeve on one side of the device. If the sleeve is rolled up, it will compress the blood vessels and make the measurement inaccurate. The cuff should be tied around the elbow of the upper arm, and only two fingers should be tied to it, as loose or tight ties will affect the blood pressure measurement. Then touch the blood vessels at the elbow and find the one with the strongest beat. Put on a stethoscope and put the head of the stethoscope on the part of the cuff where the blood vessel is located. The cuff is then inflated to about 140 mmHg and slowly deflated. The first time you hear a pulsatile sound, the height of the mercury column is high pressure, and then deflate until no pulsatile sound can be heard is low pressure. The deflation should be slow, otherwise you may not be able to hear the demarcation line, resulting in inaccurate blood pressure measurement.

This type of sphygmomanometer is relatively fragile, if the mercury column leaks or the column is accidentally broken when the lid is closed, the blood pressure measurement will be inaccurate.

The most common type of sphygmomanometer is the electronic sphygmomanometer, which is usually strapped to the wrist and flips a switch to bring up the blood pressure automatically. This blood pressure monitor is not very accurate, but there are elderly people or people with high blood pressure at home can buy a home, every day to measure a measure to prevent the blood pressure rise and do not know, which leads to danger.