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You’ve likely heard your health care provider say your blood pressure is something like “120 over 80,” typically a larger number over a smaller number. Together, the two are measured in ...
Blood pressure is usually expressed in terms of the systolic pressure (maximum pressure during one heartbeat) over diastolic pressure (minimum pressure between two heartbeats) in the cardiac cycle. It is measured in millimeters of mercury (mmHg) above the surrounding atmospheric pressure , or in kilopascals (kPa).
For example, if a person’s actual blood pressure is 134, and blood pressure is measured on a dangling arm, the reading could end up over 140, which is considered to be stage 2 hypertension.
When measuring blood pressure in the home, an accurate reading requires that one not drink coffee, smoke cigarettes, or engage in strenuous exercise for 30 minutes before taking the reading. A full bladder may have a small effect on blood pressure readings; if the urge to urinate arises, one should do so before the reading.
Normal Blood Pressure. less than 120. less than 80. Elevated blood pressure. 120 to 129. less than 80. Hypertension stage 1. 130 to 139. 80 to 89. Hypertension stage 2. 140 or higher. 90 or higher ...
The bladder should be emptied before a person's blood pressure is measured since this can increase blood pressure by up to 15/10 mmHg. [91] Multiple blood pressure readings (at least two) spaced 1–2 minutes apart should be obtained to ensure accuracy. [92] Ambulatory blood pressure monitoring over 12 to 24 hours is the most accurate method to ...