Alterations in Blood Flow-patho

Discuss what treatments that might be helpful to her

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Unformatted text preview: he is being poked with pins and needles. 1.Explain to Carol what Raynaud’s is, and describe its etiology. 2.Discuss what treatments that might be helpful to her. Aneurysms Aneurysms Arterial aneurysms are a major cause of death. Early detection allows for definitive repair. Aneurysms caused by degenerative etiologies enlarge over years to decades. Aneurysms caused by infectious or traumatic etiologies expand over days to months. Localized arterial permanent dilatation arterial wall weakens until it bulges outward. (then it can rupture) Underlying cause atherosclerotic changes in a vessel, trauma, congenital weakness, infection, or inflammation. Clinical manifestations depend on the site. Classified as true or false aneurysms. Frequently found in cerebral circulation and thoracic and abdominal aorta. (AAA) Dissecting aortic aneurysms are a medical emergency and treated medically and/or surgically. Classification of Aneurysms Classification True---all 3 layers of the vessel are involved. ---all Saccular---weakening confined to one Saccular---weakening side of the vessel. side Fusiform---weakening of both sides of the Fusiform---weakening vessel wall. vessel False---at least one layer of the vessels is ---at unaffected. Dissecting---tear in the vessel wall that Dissecting---tear creates a channel of blood flow between the layers of the vessel.(bleeds in between layers of the vessel) the Classification of Aneurysms Aneurysms Aneurysm Aneurysm Aneurysms Aneurysms Aneurysm Aneurysm Aneurysm Aneurysm Stents Stents Aneurysm Aneurysm Arteriovenous Fistulas Arteriovenous Abnormal communication between Abnormal arteries and veins. (missing the networkblood goes from artery to the vein and does not go through capillaries, arterioles, and venules) missing exchange of O2 CO2 and nutrients Do on patients with dialysis Do Usually congenital in origin. Symptoms depend on size and location of Symptoms the fistula. the May result in alterations in oxygen to the May Acute Arterial Occlusion Acute Absence of arterial circulation Embolism lodges in a major artery with Embolism followed by decreased circulation to the extremity. extremity. Due to a thrombus, embolus, trauma, Due vasospasm. vasospasm. Usually a surgical emergency. Clinical manifestat...
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This document was uploaded on 03/25/2014.

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