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The difference between the systolic and diastolic pressures is known as pulse pressure, [1] while the average pressure during a cardiac cycle is known as mean arterial pressure. [ 2 ] Blood pressure is one of the vital signs —together with respiratory rate , heart rate , oxygen saturation , and body temperature —that healthcare ...
Pulse pressure is calculated as the difference between the systolic blood pressure and the diastolic blood pressure. [3] [4]The systemic pulse pressure is approximately proportional to stroke volume, or the amount of blood ejected from the left ventricle during systole (pump action) and inversely proportional to the compliance (similar to elasticity) of the aorta.
The difference between the systolic and diastolic pressures is referred to as pulse pressure (not to be confused with pulse rate/heartrate) and has clinical significance in a wide variety of situations. It is generally measured by first determining the systolic and diastolic pressures and then subtracting the diastolic from the systolic.
Hypertension is classified into stages of severity; Stage 1 has a systolic reading of 130 to 139 or a diastolic reading of 80 to 89. A systolic measurement above 180 and/or a diastolic measurement ...
Similarly when people’s arms were on their laps, the systolic blood pressure was 3.9 points higher than when their arms were supported by a surface, while the diastolic pressure was 4 points ...
The difference between the systolic and diastolic pressure is called the pulse pressure. The measurement of these pressures is now usually done with an aneroid or electronic sphygmomanometer . The classic measurement device is a mercury sphygmomanometer, using a column of mercury measured off in millimeters .
However, there has recently been a move towards the use of the fifth Korotkoff sound (i.e. silence) as the diastolic blood pressure, as this has been felt to be more reproducible. [9] For paediatrics, there has been controversy regarding whether to use auscultation of the fourth or fifth Korotkoff sound as an indicator of diastolic pressure ...
Diastole (/ d aɪ ˈ æ s t ə l i / dy-AST-ə-lee) is the relaxed phase of the cardiac cycle when the chambers of the heart are refilling with blood. The contrasting phase is systole when the heart chambers are contracting. Atrial diastole is the relaxing of the atria, and ventricular diastole the relaxing of the ventricles.
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