High blood pressure means that the force of blood against the inside of your blood vessels is higher than it should be. This makes your heart work harder. And it may damage your blood vessels. High blood pressure means a level of 130/80 mm Hg or more.
Your health care provider will check your blood pressure each time you have an office visit. Having a high reading at one office visit doesn't mean that you have high blood pressure. High blood pressure means that your blood pressure is high over a period of time. That is why your provider checks it at each office visit. They can then look at the pattern of your blood pressure. Try to arrive early enough to your appointment so you can rest before your blood pressure is taken. Don't do any strenuous exercise, don't have caffeine, and don't smoke for at least 30 minutes before your pressure is measured. You can also check your own blood pressure at home. This helps to be sure it stays in good control.