1, the sphygmomanometer should be checked regularly to maintain its accuracy, and should be placed on a smooth, do not be inverted or shock.
2, pumping should not be too high, too fierce, after use to drive out the air inside the cuff, rolled up. Rubber ball must be placed in a fixed position in the box, in order to prevent the glass pressure breaks, where the mercury column under the switch, should be closed after use of the switch. If the mercury column bubbles, should be adjusted to quit maintenance, not with the bubble measurement.
3, if you find the sphygmomanometer inaudible or abnormal, should be re-tested. Make the mercury column down to "0" point and then measured, the heart to be measured double upper arm for comparison.
4, must closely observe the blood pressure, should try to do four: fixed time, fixed parts, fixed position, fixed sphygmomanometer.
5. For hemiplegic patients, measurement should be made on the healthy arm.
6, to prevent the sphygmomanometer itself caused by the error: the mercury is not enough, the measured blood pressure is low. If the ventilation hole at the upper end of the mercury column is blocked, it is difficult to get air in and out, which can cause low systolic pressure and high diastolic pressure.
7, in order to avoid the effect of blood flow, in the measurement of blood pressure, sphygmomanometer "0" point should be and the brachial artery, the heart at the same level, sitting position, the brachial artery flat fourth rib cartilage; lying down, and the mid-axillary line level. If the limb is too high, the measured blood pressure is often low, the position is too low, the measured blood pressure is high.
And the correct way to measure blood pressure with a sphygmomanometer is:
(1) in a warm room;
(2) at the same time every day;
(3) sitting in a chair and straightening your back;
(4) with the arm band tied tightly;
(5) with the arm band at the same height as the heart;
(6) taking several deep breaths and relaxing< /p>
If you have more questions about the purchase and use of blood pressure monitors, I recommend a third-party gathering place for home medical equipment shoppers and users, where many experiences are shared and more objective. You can easily find it by searching Google or Baidu for "360 home medical equipment forum".
Source: 360 Home Medical Equipment Forum - A third party gathering place for home medical equipment buyers and users