Which of the following could be a risk factor for the development of atherosclerosis and peripheral vascular… - RUHS, Jaipur, M.Sc Nursing Entrance Exam-2015

RUHS, Jaipur, M.Sc Nursing Entrance Exam-2015

Medical & Surgical Nursing

Easy

Appeared in: RUHS, Jaipur, M.Sc Nursing Entrance Exam-2015

Explanation

High levels of Low-Density Lipoprotein (LDL) cholesterol are a major and direct risk factor for atherosclerosis.
LDL is often termed "bad cholesterol" because it transports and deposits cholesterol into the arterial walls, initiating the formation of atherosclerotic plaques.
This process of plaque buildup, known as atherogenesis, leads to the narrowing and hardening of arteries, which is the hallmark of atherosclerosis and peripheral vascular disease.
Clinical management of cardiovascular risk strongly focuses on lowering LDL cholesterol levels through lifestyle changes and medications like statins.

Option A: Low levels of LDL cholesterol are desirable and indicate a lower risk of developing atherosclerosis. This is a protective factor, not a risk factor.
Option B: While high levels of VLDL (which carries triglycerides) do contribute to atherosclerosis, high LDL is considered the primary and most direct atherogenic lipoprotein. In a question asking for a key risk factor, high LDL is the more precise answer.
Option D: High levels of HDL cholesterol are protective against atherosclerosis. HDL is known as "good cholesterol" because it facilitates reverse cholesterol transport, removing cholesterol from artery walls and transporting it to the liver for excretion.

Clinical Relevance

Nursing practice connection: Knowing Lipid profile and risk factors for atherosclerosis helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Nurses play a crucial role in patient education regarding diet (low in saturated and trans fats), exercise, and smoking cessation to manage cholesterol levels.
It is essential for nurses to understand the lipid profile results to reinforce the treatment plan and explain the importance of medication adherence (e.g., statins) to patients.
Monitoring for signs of peripheral vascular disease, such as intermittent claudication, weak peripheral pulses, and skin changes in the lower extremities, is a key nursing assessment.

How to Approach the Question

First, identify the core concept of the question, which is identifying a risk factor for atherosclerosis.
Recall the fundamental roles of the different types of cholesterol. A simple mnemonic is LDL = 'Lousy' (bad) and HDL = 'Healthy' (good).
Evaluate each option based on this understanding. High levels of a 'lousy' thing (LDL) would be a risk, while high levels of a 'healthy' thing (HDL) would be protective.
Eliminate the options that are clearly incorrect: 'Low levels of LDL' (this is good) and 'High levels of HDL' (this is also good).
Differentiate between the remaining options, 'High VLDL' and 'High LDL'. Recognize that while both are risk factors, high LDL is universally taught as the primary driver of plaque formation, making it the best answer.

Concept Tested & Keywords

Concept Tested: Lipid profile and risk factors for atherosclerosis
Stem keywords: atherosclerosis, peripheral vascular disease, risk factor, cholesterol
Lead-in keywords: Which of the following

QKarb4KflYg3WiQOzglV_U

E6 PATHOLOGY QUICK REVIEWBased on Harsh Mohan Textbook of PATHOLOGY p. 184-186

E6 Pathology- ROBBINS & COTRAN PATHOLOGIC BASIS OF DISEASE 10TH Ed p. 500-502

E6 Pharmacology Katzung 16e p. 981-983