NURS 6501 Week 3 Quiz - 100 by 100 points
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Thinning of the tunica media due to reduced elastin fibers Overgrowth of smooth muscle cells in the tunica media Thickening of the tunica intima due to increased collagen 5. A woman presents to the clinic with complaints of bulging, tortuous veins in her lower legs. She is on her feet 8 hours a day due to her job. Which of the following pathophysiological mechanisms is most responsible for the development of this abnormality? Group of answer choices 10 pts Arterial flow obstruction causing reduced perfusion Venous wall stretching leading to valve incompetence Stenosis and narrowing of the venous lumen Vein wall hypertrophy due to increased venous pressure 6. A patient's echocardiography demonstrates a significantly narrowed aortic valve orifice with left ventricular hypertrophy. Which major category of cardiac pathology best explains this condition? Group of answer choices 10 pts Regurgitant flow Pump failure Shunted flow Flow obstruction 7. Which of the following best describes the primary role of resistance vessels? Group of answer choices 10 pts Providing nutrient supply to the walls of larger vessels Ensuring blood storage during periods of low cardiac output They regulate arterial blood pressure and blood flow within the organs. Directing blood flow to specific organs based on demand 8. An elderly adult undergoes an echocardiogram as part of a cardiovascular evaluation. The nurse practitioner is focused on visualizing a valve with 2 leaflets that prevent backflow from the left ventricle to the left atrium. Which valve is being visualized? Group of answer choices 10 pts Tricuspid valve
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