NSG 4330 Lecture Notes - Lecture 4: Hemodynamics, Blood Gas Tension, Angiotensin
11 Nov 2020
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Document Summary
Heart failure: complex clinical syndrome in which an abnormality for cardiac function is responsible for an inability of the heart to pump blood throughout the circulatory system therefore failing to meet the demands of the tissues. Can be caused by factors originating from the heart (intrinsic disease or pathology) or from external factors that place excessive demands upon the heart. Cad, faulty heart valves, high bp, cardiomyopathy (dilation of heart leading to decreased pumping ability). Often goes hand in hand with copd and emphysema, which exerts pressure on blood vessels in lungs. Risk factors: family hx, htn, obesity, age, alcohol intake, diabetes, smoking, inactive lifestyle, sleep disorders. Etiology: cad and chronic htn are the most common causes of hf, particularly l sided hf, which is the most common form of hf. These account for more than 80% of all clinical events. More acute, can lead to pulmonary edema- life-threatening.
