Wrist sphygmomanometer measurements are low.
Wrist sphygmomanometers are used more often due to their ease of measurement. However, the measurement of this type of sphygmomanometer and the normal blood pressure is there is a certain error. For young people with better elasticity of blood vessels, wrist sphygmomanometers and elbow sphygmomanometers are comparable, and wrist sphygmomanometers are relatively accurate.
In the elderly, as they age and their condition varies, the arteries, especially the upper arm arteries, harden to different degrees. The heavier the degree of hardening, the less accurate the measurement of the wrist sphygmomanometer will be, and it may be lower than the actual measurement of the blood pressure. The overall principle is that the closer the blood pressure is to the heart, the more accurate it is, and the farther away from the heart, the more inaccurate it is.
The wrist sphygmomanometer can only be used as a guide for taking oral antihypertensive medication. If there is any error, it is recommended to go to the regular hospital mercury column sphygmomanometer measurement is more accurate.