In which direction is the airbag of the sphygmomanometer twisted?

Correct posture: The sphygmomanometer should keep the same horizontal position with the measured arm and heart. Subjects can choose to sit or lie down for measurement.

2. Turn on the sphygmomanometer and reduce the mercury column reading to zero. After exhausting the air in the cuff of the sphygmomanometer, put it 2 ~ 3 cm above the elbow joint of the arm (it is best to choose the left arm for measurement, because the left arm is close to the heart and the relative measurement data is relatively stable).

3. Fix the cuffs (not too tight or too loose). After the brachial artery pulsates inside the cubital fossa, put the stethoscope head on the brachial artery and tighten the air valve on the cuff. Fast pumping and pressure measurement. When pumping air, the measurer should pay attention to the mercury column of the sphygmomanometer (pay attention to keeping the line of sight and scale on the same horizontal line as possible).

4. Loosen the air valve clockwise to make the mercury drop slowly. When you hear the sound of the first pulse beating, the reading displayed at this time is the systolic blood pressure value. Continue listening while deflating until the pulse sound at a certain blood pressure scale weakens or even disappears, and the displayed blood pressure is diastolic pressure. Subjects should keep calm before measurement. After measurement, re-measure at least after 1 ~ 2 minutes. The average value of two times is selected as the measured blood pressure value.

5. Safe disposal of mercury sphygmomanometer:

(1) After using the sphygmomanometer, tilt the sphygmomanometer about 45 to the right of the mercury bottle, and turn off the switch of the mercury storage bottle after the mercury completely returns to prevent the mercury from flowing out.

(2) When the switch of the mercury storage bottle is not turned on, do not inflate or pressurize the rubber bag. Because when there is air in the bag, turning on the switch of the mercury storage bottle is easy to cause Gong to discharge and cause an accident.

(3) If there is any problem with the sphygmomanometer, it should be sent to a professional department for maintenance. Unauthorized maintenance can easily lead to mercury outflow and affect health.

(4) The sphygmomanometer should be placed horizontally in a stable and firm place, with an ambient temperature of -20℃ ~+35℃ and a relative humidity of ≤80%.