The diagnostic methods of hypertension mainly include blood pressure in the clinic family self-measurement of blood pressure and 24-hour dynamic blood pressure. The blood pressure in the clinic is affected by many external factors, and sometimes the measured value cannot reflect the true blood pressure level, such as white coat hypertension and pseudo hypertension.24 hours dynamic blood pressure detection is more reliable, but needs professional equipment, is not very convenient;And home blood pressure measurement is due to convenient detection, small environmental factors, blood pressure measurement value is relatively reliable, so it is widely accepted for some misunderstandings in the process of home blood pressure measurement, the following do some brief answers.
Misunderstanding a: mercury sphygmomanometer is best
The measurement of blood pressure will involve the selection of sphygmomanometer. At present, electronic sphygmomanometer or mercury blood is mainly used for blood pressure measurement in hospitals or families Pressure gauge. You're probably used to mercury sphygmomanometers as being more accurate.
In fact, mercury sphygmomanometer is just a pressure gauge, mostly in medical institutions need medical personnel with stethoscope to measure blood. Because of the pressure. Because of the complicated operation of mercury sphygmomanometer, it is inconvenient to carry, and mercury is a heavy metal substance that pollutes the environment, many countries in the world. It has been banned. With the development of science and technology, the use of electronic sphygmomanometer is increasingly popular, the use of professional certification, in line with the quality standard. The accurate electronic sphygmomanometer can measure blood pressure strictly according to the precautions, which can also ensure the accuracy of measurement and is more convenient at the same time.
Misunderstanding B: It is more accurate for taking measure by left hand
You might think that the heart is on the left side of the chest, so the left hand should have a higher blood pressure than the right. Actually not, the blood pressure of the left and right arms. There may be differences, but some studies have found no significant difference in the proportion of blood pressure differences between left and right hands.
Typically, the difference in blood pressure between the left and right arms is no more than 10 mmHg, and we measured it on the higher side of the arm. When a difference of more than 20 mmHg is found between the two hands, it is important to be alert for the presence of the associated arterial blockage and seek further examination at the hospital.
Misunderstanding C: Blood pressure is a fixed value
Blood pressure also fluctuates with the change of day and night activity. In general, the blood pressure is higher during the day and the lowest at night. Live Blood pressure is higher when you are active and lower when you are quiet.
Therefore, blood pressure values are not fixed, and are more likely to occur when night blood pressure is similar to or even higher than daytime blood pressure. Damage to target organs such as heart, brain and kidney.
Misunderstanding D: Blood pressure monitoring has a fixed time point
Should be selected according to the specific situation. The correct measurement of blood pressure is very important for the diagnosis of hypertension and the judgment of the efficacy of antihypertensive drugs. The time point of blood pressure monitoring is also an important link in the correct measurement of blood pressure.
Generally, we will choose two time points in the morning and late evening to measure the blood pressure under the quiet state, for the hypertensive patients taking antihypertensive drugs Patients should especially choose to have their blood pressure measured in the morning before taking medication. The blood pressure level at this time can help your doctor adjust medications. Some patients often. Often like to take 2 ~ 3 hours after the blood pressure measurement, the blood pressure value at this time only reflects the short-term effect of antihypertensive drugs, can not judge whether the drug. It can control blood pressure for 24 hours.
Misunderstanding E: Taking blood pressure at the hospital is more accurate than taking it at home
Many patients worry about home pressure measurement is not allowed, like to measure blood pressure to the hospital, in fact, otherwise. In fact, measuring blood pressure at home is influenced by the environment, Psychological influence is small, as long as the operation standard, the measured blood pressure value is more reliable.
On the contrary, some patients with low blood pressure go to the hospital, because of the time hurry, not quiet 20 ~ 30 minutes before the test, or see the doctor to produce tension, anxiety, blood pressure increased phenomenon (the so-called "white coat hypertension"), if the doctor prescription antihypertensive drugs will cause adverse consequences. In addition, some patients go to the hospital to have their blood pressure measured after taking the medication, and even if the blood pressure is normal, it doesn't mean the hypertension is really under control. At present, home blood pressure measurement or 24-hour dynamic blood pressure detection is recommended clinically as a relatively reliable basis for the diagnosis or control of hypertension, and blood pressure measurement in hospital consulting room is generally used as a reference.
