Practice Question # 914.
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The difference between the systolic and diastolic pressures is called the pulse pressure.
Blood pressure (BP) is the force on the walls of an artery exerted by the pulsating blood under pressure from the heart.
Pulse Pressure – The two numbers (measured in mm of Hg = Torr) which represent the range of blood pressure in an artery between (1) ventricular contraction, which produces the systolic pulse measurement, and (2) ventricular relaxation, the diastolic pressure measurement which is maintained by the elasticity and muscular tone of the arterial tree between heart beats; a pulse pressure of approximately 40 (120 – 80) is considered normal; arterial pulse pressure can be affected by stroke volume, arterial compliance, and heart rate; changes noted in the pulse pressure have clinical diagnostic significance.