Những điều cơ bản về huyết áp cao

When it comes to blood pressure, however, the consensus is a genuine consensus (this is surprisingly rare, even amongst real doctors!). High blood pressure is bad, and low blood pressure is good as long as it is not too low, as this can lead to fainting. The actual goal posts move around slightly as drug companies try to find studies to push the targets down, after which independent research relaxes them again. A sensible line can be drawn at <150/<90 in a clinic (whitecoat) setting, and <130/<80 for home readings. It is important to remember that blood pressure is a dynamic value that fluctuates according to time of day and circumstances. As a general rule, if you have different readings, use the lowest one to judge whether you have high blood pressure or not. For example, if you get readings of 150/95, 110/70, and 130/100 throughout the day – your blood pressure is 110/70. Nevertheless, a one-off reading of >180/>120 is going to need attention. Otherwise, I would expect three consecutive elevated readings, spaced at least two weeks apart, before initiating treatment.