There are five main factors affecting arterial blood pressure:
1, stroke output;
2. Peripheral resistance;
3. Heart rate;
4. Elasticity of aorta and aortic wall;
5. Circulating blood volume and vascular capacity.
Extended data:
Pay attention to the following six details when measuring blood pressure at home, which can make the measurement more accurate.
1, rest for 5 minutes before measuring blood pressure, and then measure it after breathing is stable and heartbeat is normal. Exercise and emotional excitement can make blood pressure fluctuate.
2. It is best for patients with hypertension to check their blood pressure regularly and record the value of each time to help doctors correctly judge the change of their condition.
3. Choose a sphygmomanometer that meets international standards and calibrate it in advance. The cuff covers at least 2/3 of the upper arm.
Whether sitting or lying down, the upper arm and sphygmomanometer should be on the same level with the heart. Old people, diabetics and people with orthostatic hypotension should also have their orthostatic blood pressure measured again.
5. It is best to measure it twice at an interval of 1-2 minutes, and take the average value. If the difference between the two blood pressure readings is 5 mm Hg, it should be measured again, and the average of the three readings should be taken as the measurement result.
6. Keep quiet when measuring, don't talk and don't move your arms.
Also, although many patients with hypertension have hidden onset, sometimes there are traces to follow. Often dizzy and quiet, there are symptoms such as jumping in the back of the head, blushing and nosebleeds. Don't ignore them and watch your blood pressure. In addition, people over the age of 50 insist on an annual physical examination, pay attention to measuring blood pressure, and people with a family history of hypertension should also measure blood levels regularly.
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