Force originating when the heart's pumping pushes the blood against the walls of the blood vessels. Their stretching and contraction help maintain blood flow. Usually measured over an arm or leg artery in humans, blood pressure is expressed as two numbers; normal adult blood pressure is about 120/80 mm of mercury. The higher number (systolic) is measured when the heart's ventricles contract and the lower (diastolic) when they relax. Seealso hypertension, hypotension.
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Arterial Sampler Filling Time during Arterial and Venous Punctures, and Its Relationship with Mean Arterial Pressure in Human Subjects
Nov 01, 2012; Introduction Respiratory therapists and other clinicians frequently obtain arterial blood samples by percutaneous...