理想血压收缩压小于120毫米汞柱，舒张压小于80毫米汞柱，正常血压收缩压小于130毫米汞柱，舒张压小于85毫米汞柱，正常高值，收缩压130~139毫米汞柱，舒张压85~89毫米汞柱。 正常血压参考值是根据世界卫生组织和我们国家对于血压正常值的标准，理想血压收缩压小于 120 毫米汞柱，舒张压小于 80 毫米汞柱，正常血压收缩压小于 130 毫米汞柱，舒张压小于 85 毫米汞柱，正常高值，收缩压 130~139 毫米汞柱，舒张压 85~89 毫米汞柱，如果收缩压高于 140 毫米汞柱，舒张压高于 90 毫米汞柱，诊断为高血压，收缩压低于 90 毫米毫米汞柱，舒张压低于 60 毫米汞柱，诊断为低血压。
Ideal blood pressure systolic blood pressure less than 120 mmHg, diastolic blood pressure less than 80 mmHg, normal blood pressure systolic blood pressure less than 130 mmHg, diastolic blood pressure less than 85 mmHg, normal high, systolic blood pressure 130 ~ 139 mmHg, diastolic blood pressure 85 ~ 89 mmHg. The reference value of normal blood pressure is according to the standard of the World Health Organization and our country for normal blood pressure. The ideal systolic blood pressure is less than 120 mmHg, the diastolic blood pressure is less than 80 mmHg, the normal systolic blood pressure is less than 130 mmHg, the diastolic blood pressure is less than 85 mmHg, the normal high value, the systolic blood pressure is 130 ~ 139 mmHg, the diastolic blood pressure is 85 ~ 89 mmHg If systolic blood pressure is higher than 140 mmHg and diastolic blood pressure is higher than 90 mmHg, hypertension is diagnosed. If systolic blood pressure is lower than 90 mmHg and diastolic blood pressure is lower than 60 mmHg, hypotension is diagnosed.
What is the normal range of blood pressure
Ideal blood pressure: systolic blood pressure & lt; 120mmhg and diastolic blood pressure & lt; 80mmHg.
Normal blood pressure: systolic blood pressure should be & lt; 130mmhg, diastolic blood pressure should be & lt; 85mmHg.
血压正常高限或高血压前期：收缩压在 130~139mmHg 和/或舒张压在 85～89mmHg。
High normal blood pressure or prehypertension: systolic blood pressure in 130 ~ 139mmhg and / or diastolic blood pressure in 85 ~ 89mmhg.
Hypertension: systolic blood pressure ≥ 140mmHg and / or diastolic blood pressure ≥ 90mmHg.
Hypotension: systolic blood pressure ≤ 90mmHg and / or diastolic blood pressure ≤ 60mmhg.
临界高血压：收缩压在 140～160mmHg(18.6～21.3kPa),舒张压在 90～95mmHg(12.0～12.6kPa)。
Borderline hypertension: systolic blood pressure was 140-160mmhg (18.6-21.3kpa), diastolic blood pressure was 90-95mmhg (12.0-12.6kpa).
What are the types of sphygmomanometers
1. Mercury sphygmomanometer
There are two types of mercury sphygmomanometer: desktop sphygmomanometer and vertical sphygmomanometer. The structure of desktop sphygmomanometer is reasonable, firm and reliable. The vertical sphygmomanometer can adjust the height at will, and is most commonly used because of its reliable results. But the latter is a little larger, inconvenient to carry, and has the risk of mercury leakage. The principle of blood pressure measurement is auscultation, which consists of balloon, cuff and manometer. The two rubber tubes of the cuff are respectively connected with the balloon and the pressure gauge to form a closed pipeline system. The pressure gauges are mercury column type and spring type.
2. Electronic sphygmomanometer
According to the measured position, it can be subdivided into upper arm type, wrist type, finger type, manual type, automatic type, etc. The utility model has the advantages of simple operation, intuitive reading and automatic measurement by simply turning on the switch, which is suitable for family use. But the electronic sphygmomanometer also has the disadvantage of large error, and it needs to be calibrated according to the standard mercury sphygmomanometer. Its principle is auscultation (also known as Coriolis sound method) or oscillometry (also known as oscillation method). It is mainly composed of gas pressure sensor, pressurized micro air pump, electronically controlled exhaust valve, related software, mechanical slow exhaust valve and solenoid fast exhaust valve.
3. Barometer sphygmomanometer
Clinically, it is also called anemomanometer and spring type sphygmomanometer. The use of pneumatic pump for pressure measurement is small and easy to carry. However, with the increase of application times, the accuracy of the results will be affected due to the change of spring properties. Therefore, it is necessary to calibrate the standard mercury sphygmomanometer regularly, which has been rarely used in clinic.
Precautions for use of sphygmomanometer
1. The sphygmomanometer should be checked and proofread regularly to keep its accuracy.
2. For those who need to observe blood pressure closely, we should do “four fixed”, that is, fixed time, fixed position, fixed sphygmomanometer.
3、测量前 30 min 内无剧烈运动、吸烟、情绪变化等影响血压的因素，情绪稳定，袖口不宜过紧。
3. There were no severe exercise, smoking, emotional changes and other factors affecting blood pressure within 30 minutes before measurement. The mood was stable and the cuff should not be too tight.
4. Choose the right cuff as required.
5. Inflation should not be too fast or too fast to prevent mercury overflow; deflation should not be too fast or too slow to avoid reading error.
6. If the blood pressure is found to be inaudible or abnormal, it should be retested. During the re measurement, the mercury column should be reduced to “0” before measurement.
7. Hemiplegic patients were measured on the contralateral arm.