How to use mercury sphygmomanometer? How to use mercury sphygmomanometer?

1. It is necessary to calibrate the mercury sphygmomanometer regularly before using it. In addition, check whether the mercury ruler is at the baseline level, whether the switch is closed and whether the cuff leaks. When measuring with electronic sphygmomanometer and other instruments, it is also necessary to measure blood pressure in a quiet environment for at least > 5 minutes, and do not exercise vigorously.

2. Two fingers tied to the upper arm far away from the elbow should be horizontally selected at the lower edge of the cuff, and the tightness should be 1-2 fingers, neither too tight nor too loose;

3. Stethoscope should be used when measuring. The stethoscope should not be inserted into the cuff, but should be placed at the brachial artery pulsation at the elbow socket.

4. When measuring the mercury sphygmomanometer, air needs to be pumped. In the process of pumping, it is generally necessary to reach the level that the estimated blood pressure is still 20-30mmHg higher, and then deflate evenly. When the first pulse is heard during deflation, this value can be used as systolic pressure, and the value when the pulse disappears can be used as diastolic pressure;

5. There are also special situations that need attention in the measurement process, such as large atherosclerotic pressure difference. The diastolic blood pressure of the elderly with serious diseases may be low, so the diastolic blood pressure should be taken as the value when the pulsating sound is weakened. In addition, there is a mantissa preference problem, so the general mercury sphygmomanometer is measured by professionals.