WK10Assgn+Lewis+J.pptx - CONGESTIVE HEART FAILURE BY JOY LEWIS PATHOPHYSIOLOGY OF CHF SYSTOLIC DYSFUNCTION OCCURS WHEN THE LEFT VENTRICLE IS UNABLE TO

WK10Assgn+Lewis+J.pptx - CONGESTIVE HEART FAILURE BY JOY...

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CONGESTIVE HEART FAILURE BY: JOY LEWIS
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PATHOPHYSIOLOGY OF CHF SYSTOLIC DYSFUNCTION OCCURS WHEN THE LEFT VENTRICLE IS UNABLE TO RELAX AND FILL SUFFICIENTLY TO ACCOMMODATE ENOUGH OXYGENATED BLOOD RETURNING FROM THE PULMONARY CIRCUIT. SYSTOLIC DYSFUNCTION LEADS TO INCREASED VASCULAR RESISTANCE AND INCREASED AFTERLOAD. COMMON CAUSED ARE MI, ISCHEMIA, AND DILATED MYOCARDIUM DIASTOLIC DYSFUNCTION LEADS TO PULMONARY VASCULAR CONGESTION. OFTEN ASSOCIATED WITH MYOCARDIAL HYPERTROPHY Reduced EF Increased EDV Decrease d Contractil ity Preserve d EF Normal EDV Decreas ed complian ce
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SIGNS AND SYMPTOMS OF HEART FAILURE RIGHT SIDED FAILURE EFFECTS LIVER AND PERIPHERAL VESSELS HEPATOMEGALY – INCREASED CENTRAL VENOUS PRESSURE CAUSES INCREASED RESISTANCE TO PORTAL FLOW. JUGULAR VENOUS DISTENTION – INCREASED VENOUS PRESSURE. PERIPHERAL EDEMA – INCREASED VENOUS PRESSURE CAUSES FLUID TRANSUDATION.
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