NUR 1211C Chapter Notes - Chapter Test 3: Vascular Resistance, Vascular Smooth Muscle, Adrenergic Receptor
8 Feb 2020
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Target goals take into consideration both age and co-morbidities when recommending treatment options. Normal regulation of blood pressure: blood pressure (bp) is the force exerted by the blood against the walls of the blood vessel. Hypertension adequate to maintain tissue perfusion during activity and rest. The maintenance of normal bp and tissue perfusion requires the integration of both systemic factors and local peripheral vascular effects. Bp is primarily a function of cardiac output (co) and systemic vascular resistance: co is the total blood flow through the systemic or pulmonary circulation per minute. The radius of the small arteries and arterioles is the principal factor determining svr. As the artery narrows, resistance to blood flow increases. As arteries dilates, resistance to blood flow decreases: if svr is increased and co remains constant or increases, arterial bp will increase, regulation of bp is a complex process.
