How does the artery become in atherosclerosis?

Bihar CHO -2019

Pathology & Genetics

Easy

Appeared in: Bihar CHO -2019

Explanation

Atherosclerosis is characterized by the formation of atheromas (plaques) in the inner lining (intima) of arteries.
These plaques are composed of lipids, cholesterol, calcium, and fibrous tissue, which physically increases the thickness of the arterial wall.
The deposition of fibrous tissue and calcium (calcification) within the plaque causes the artery to lose its natural elasticity, making it stiff and hard.
This combined process of thickening and hardening leads to a narrowed arterial lumen, restricting blood flow to vital organs.

Option B: This is the opposite of what occurs in atherosclerosis. The disease process leads to a progressive loss of arterial elasticity.
Option C: While the fibrous cap over a plaque can become unstable and rupture (making it seem 'fragile'), the overall change to the artery wall is one of hardening and thickening, not becoming inherently fragile.
Option D: This is the opposite of the pathological process. Atherosclerosis involves the addition of material (plaque) to the arterial wall, causing it to thicken.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Pathophysiology of atherosclerosis and its effect on arterial structure as background academic context rather than a clinical decision trigger.
Understanding that atherosclerosis causes arteries to become thick and hard is fundamental for nurses, as it explains the pathophysiology of major cardiovascular diseases like coronary artery disease (CAD), peripheral artery disease (PAD), and ischemic stroke.
A nurse assessing a patient with suspected PAD will look for signs of reduced blood flow, such as diminished peripheral pulses, cool skin, and poor capillary refill, which are direct consequences of the narrowed, hardened arteries.
Patient education is a key nursing role. Explaining that lifestyle modifications (diet, exercise, smoking cessation) can slow the process of arterial thickening and hardening empowers patients to manage their condition.

How to Approach the Question

First, identify the key terms in the question: 'artery' and 'atherosclerosis'.
Recall the basic definition of atherosclerosis. The prefix 'athero-' refers to gruel or paste (the fatty plaque), and the suffix '-sclerosis' means hardening.
This etymology directly points to the process of plaque buildup (thickening) and hardening of the arteries.
Evaluate the options based on this core knowledge. 'Thick' relates to the plaque buildup, and 'Hard' relates to the sclerosis.
Eliminate the options that contradict this understanding. 'Elastic' is the opposite of sclerosis. 'Thin' is the opposite of plaque buildup. 'Fragile' describes a different property, while thickening and hardening are the primary pathological changes.

Concept Tested & Keywords

Concept Tested: Pathophysiology of atherosclerosis and its effect on arterial structure.
Stem keywords: artery, atherosclerosis
Lead-in keywords: How does, become
Negative lead-in flag: false

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