There is no specific value for the rise in blood pressure when a person is nervous, it varies from person to person.
Blood pressure is mainly the pressure on the side walls of blood vessels during blood flow, normal adults in a quiet state, blood pressure fluctuation range is systolic blood pressure 100~120mmHg; diastolic blood pressure 60~80mmHg; if the average of blood pressure measured on 3 non-same days, systolic blood pressure ≥140mmHg and/or diastolic blood pressure ≥90mmHg can be diagnosed as high blood pressure.
Usually, when a person is nervous, the heart rate will be accelerated, which will shorten the diastolic period of the ventricle, reduce the blood volume of the large arteries to the periphery, and increase the blood flow in the aorta, which will lead to a significant increase in the diastolic blood pressure and cause the fluctuation of the blood pressure, but the value of the increase will be different from one person to another. If a person is in a state of stress for a long period of time, it will lead to a constant rise in blood pressure, which may lead to high blood pressure.
It is important to relax and maintain a relaxed state of mind in your daily life, which is conducive to good health. When the blood pressure becomes abnormal, it is recommended to go to the hospital in time.