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5 Cards in this Set
- Front
- Back
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How are dysrhythmia's caused?
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1) abnormal rate or impulse generation by the SA node or pacemaker
2) abnormal conduction of impulses through the hearts conduction system |
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Major risk for coronary artery disease (CAD)
- MAJOR NON MODIFIABLE - MAJOR MODIFIABLE |
- Major non-modifiable risk factors: advanced age, male gender, women after menopause, family history
Major modifiable risk factors: DYSLIPIDEMIA, HYPERTENSION, CIGARETTE SMOKING, DIABETES and insulin resistance, obesity, sedentary lifestyle, atherogenic diet Dyslipidemia: abnormal concentrations of serum lipoproteins, i. combination of genetic and dietary factors; where high levels of LDL and low levels of HDL are strong indicators of coronary risk |
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2 types of aneurysms
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1) Fusiform
2) Fusiform sacualr True aneurysms: involve all three layers of the arterial wall, and are best described as a weakening of the vessel wall |
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False aneurysms:
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an extravascular hematoma that communicates
with the intravascular space If saccular but not fusiform then it is false |
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What effects does arteriosclerosis have on the cardiovascular system
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Hardening and thickening of the vessel walls.
Smooth muscle cells and collagen fibers migrate to the tunica intima -> walls thicken -> ability to change lumen size is decreased Changes in lipid, cholesterol, and phospholipids metabolism within the tunica intima also contribute to arteriosclerosis. Can cause or worsen pathophysiologic conditions such as high BP, insufficient profusion of tissues, or weakening and outpouching of the arterial walls. |
