Which of the following is a major risk factor for atherosclerosis?

Prepare for the Ultrasound Vascular Registry Test. Study with detailed flashcards and targeted multiple-choice questions, all accompanied by hints and explanations. Ace your exam and advance your career!

Cigarette smoking is widely recognized as one of the most significant risk factors for the development of atherosclerosis. The exposure to the harmful substances found in tobacco smoke can lead to endothelial injury, which is a critical first step in the process of atherosclerosis. This injury promotes inflammation and facilitates the accumulation of lipids, immune cells, and eventually plaque formation within the arterial walls. Additionally, smoking contributes to other cardiovascular risk factors, such as increased blood pressure and changes in lipid profiles, further exacerbating the risk of atherosclerosis and cardiovascular diseases.

In contrast, regular exercise helps maintain a healthy cardiovascular system and reduces the risk of developing atherosclerosis. Low cholesterol levels, especially low levels of LDL (bad cholesterol), are typically associated with a reduced risk of atherosclerosis, as high cholesterol is part of what contributes to plaque buildup. Low blood pressure is also not linked to increased risk; in fact, it is generally considered beneficial for heart health. The presence of these options highlights how specific lifestyle factors and physiological parameters can influence cardiovascular health in opposing ways compared to smoking.

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