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Blood Pressure


Blood pressure (BP), sometimes referred to as arterial blood pressure, is the pressure exerted by circulating blood upon the walls of blood vessels, and is one of the principal vital signs. When used without further specification, "blood pressure" usually refers to the arterial pressure of the systemic circulation. During each heartbeat, blood pressure varies between a maximum (systolic) and a minimum (diastolic) pressure.The blood pressure in the circulation is principally due to the pumping action of the heart.



Blood pressure readings fall into four general categories, ranging from normal to stage 2 hypertension (high blood pressure). The level of your blood pressure determines what kind of treatment you may need. To get an accurate blood pressure measurement, your doctor should evaluate your readings based on the average of two or more blood pressure readings on each of two office visits.

Blood Pressure

The top number is your systolic pressure.
It is considered high if it is over 140 most of the time.
It is considered normal if it is below 120 most of the time.


The bottom number is your diastolic pressure.
It is considered high if it is over 90 most of the time.
It is considered normal if it is below 80 most of the time.
Pre-hypertension may be considered when your:

Top number (systolic blood pressure) is between 120 and 139 most of the time, or
Bottom number (diastolic blood pressure) is between 80 and 89 most of the time

If you have pre-hypertension, you are more likely to develop high blood pressure.

If you have heart or kidney problems, or if you had a stroke, your doctor may want your blood pressure to be even lower than that of people who do not have these conditions.

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