Electronic blood pressure monitor mercury sphygmomanometer
Manual than automatic cuffs than wrists
Common sphygmomanometers on the market include mercury sphygmomanometers and electronic sphygmomanometers. Mercury sphygmomanometers are common in hospitals, and home sphygmomanometers tend to be mostly electronic. Wu Hao said that although the electronic sphygmomanometer has entered the homes of ordinary people, the hospital still follows the mercury sphygmomanometer. The reason is not that the hospital can't afford the electronic sphygmomanometer, but because the measurement results of the mercury sphygmomanometer are more accurate.
The mercury sphygmomanometer needs to be measured with a stethoscope, and the systolic and diastolic pressure readings are judged by others. Therefore, many patients or their families feel that the mercury sphygmomanometer is complicated in blood pressure measurement. Wu Hao told reporters that in fact, the mercury sphygmomanometer seems complicated, but it is very easy. If you have hypertensive patients in your home who need to monitor your blood pressure for a long time, your family may wish to learn how to use a mercury sphygmomanometer.
Compared with mercury sphygmomanometers, electronic sphygmomanometers are easy to operate and do not require others to help bundle cuffs and use stethoscope readings to measure blood pressure. Therefore, electronic sphygmomanometers have become the main tool for monitoring blood pressure in the home. The electronic sphygmomanometer has an arm type and a wrist type. Generally, the arm type measurement result is more accurate than the wrist type, and the error is smaller.
Electronic sphygmomanometer: reduce the random error several times
To measure the quality of an electronic sphygmomanometer depends on whether there are random errors or systematic errors in the measurement results.
In the similar time, the blood pressure value measured by the same instrument may be different, which is called random error. Random error is an important basis for reflecting the quality of electronic sphygmomanometer. The difference between the blood pressure values ​​of good instruments measured several times is not too large. If the results are very different, the random error of the instrument is too large to be purchased. Wu Hao told reporters that in order to reduce the random error, the people can measure the blood pressure several times at home, and record the value to average, the average value will be closer to the real blood pressure value.
In addition to random errors, electronic sphygmomanometers may also have systematic errors. Systematic error means that the blood pressure measured by a sphygmomanometer is higher or lower than the exact value. For example, the actual blood pressure of a person at a certain time is 120/80mmHg, but the repeated measurement with the instrument is 125/85mmHg, indicating that there is a systematic error of 5mmHg in this instrument. For the systematic error, the people can not see at the time of purchase, the sphygmomanometer can be taken to the hospital, and compared with the blood pressure value measured by the hospital to see if there is systematic error.
Do not adjust the tension fluctuation of blood pressure medication a doctor
The reporter learned that many patients with hypertension have a blood pressure misunderstanding: when monitoring blood pressure at home, occasionally found that the blood pressure value increased, it is very nervous, some people immediately took antihypertensive drugs, and some even immediately came to the hospital emergency. In fact, the fluctuation of human blood pressure is very common every day. If a blood pressure value is high, it should be measured several times to eliminate random errors that may exist in the instrument. If the number of measurements is high, there is no need to worry too much, which may be caused by factors such as mood and poor rest. As long as it is not too high, such as more than 180mmHg or more with symptoms such as headache, you should continue to observe for a week or so, if the blood pressure is still high, you need to consult a doctor.
When blood pressure fluctuates, it is best for patients not to add or adjust drugs. Patients with hypertension must follow the doctor's advice because they often do not understand when antihypertensive drugs work, when they are most effective, and the experience of patients. My own speculation is often unreliable. Wu Hao explained that many hypertensive patients need to take antihypertensive drugs together with bed, because the body's blood pressure hormone will be secreted quickly after getting up, so that blood pressure will rise rapidly after getting up; but it takes time for the drug to take effect. If you should take the medicine at 8 o'clock in the morning to eat at 8 o'clock in the morning, at 8 o'clock, the blood pressure may have reached the peak of the whole day. At this time, the medicine you eat can't be absorbed immediately. It may take 10 o'clock to take effect, then take the medicine and drop it. The purpose of the pressure does not match. Many patients do not understand these reasons, put the drugs that need morning clothes at night, causing time misplacement and getting into the misunderstanding.
Do not stop the drug on the day of the referral
Wu Hao told reporters that there is a common misunderstanding in the clinic that requires patient attention.
Many patients stopped taking the medicine on the day of the visit and considered taking all the tests. In fact, what the doctor wants to know is the situation after the patient takes the medicine daily, not the situation after stopping the medicine. Patients should come to the hospital for treatment, and they should not show their "special circumstances" to the doctor. Only under normal circumstances can they correctly determine whether they need to stop taking drugs or dosing.
At the same time, the reader is reminded that hypertensive patients should make detailed records after measuring blood pressure at home, and record the medication, which will not only benefit the long-term blood pressure statistics, but also provide more reference for doctors.
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