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WorksheetsPAD Arteriosclerosis and Atherosclerosis Concepts
Total questions: 40
Worksheet time: 20mins
Select the best explanation of arteriosclerosis.
Accumulation of lipids inside veins
Thickening and hardening of arterial walls
Dilation of arteries from inflammation
Spasm of arteries triggered by stress
Which description best matches Mönckeberg sclerosis?
Lipid-laden plaque formation
Calcification of the media of small- and medium-sized arteries
Thickening of arterioles from diabetes
Plaque rupture with thrombosis
A patient with chronic hypertension develops arteriolar sclerosis. Which vascular change is most expected?
Vessel dilation
Thickening and narrowing of small arteries
Decreased smooth muscle tone
Calcium depletion in vessel walls
Choose the most accurate description of atherosclerosis.
A variant of arterial spasms
Thickening caused by lipid-laden macrophages forming plaque
Hyperplastic narrowing of veins
Calcification of venous valves
A patient’s angina is attributed to plaque formation. What concept does this best support about atherosclerosis?
Is only a cardiac disease
Causes ischemia when plaques obstruct flow
Is benign unless it ruptures
Occurs only in older adults
Endothelial injury from hypertension promotes atherosclerosis primarily because the injured cells:
Produce excess antithrombotic cytokines
Cannot produce normal vasodilating cytokines
Release too much nitric oxide
Lose the ability to allow LDL entry
In early atherosclerosis, what happens when LDL enters the subintimal space?
It is immediately excreted
It becomes oxidized and triggers inflammation
It converts to HDL
It dissolves within macrophages without effect
Foam cell formation results from which cellular process? Choose the best option.
Platelet ingestion of fibrin
Macrophages consuming lipids
Smooth muscle contraction
Endothelial cells migrating into plaques
A fatty streak in early atherosclerosis is composed primarily of which element?
Calcium deposits
Aggregated platelets
Lipid-filled macrophages
Necrotic smooth muscle
Which inflammatory cytokine directly contributes to plaque development in atherosclerosis?
Dopamine
Tumor necrosis factor-alpha (TNF-α)
Serotonin
Histamine
Growth factors such as platelet-derived growth factor most directly contribute to plaque formation by which mechanism?
Promoting platelet aggregation
Stimulating smooth muscle cell proliferation
Increasing nitric oxide production
Preventing endothelial injury
During exercise, a fibrous plaque may cause symptoms primarily because it can do what to blood flow?
Dilate excessively
Protrude into the lumen and reduce blood flow
Increase vessel elasticity
Kill macrophages
A plaque that ruptures and triggers sudden thrombosis is best classified as which type?
A simple plaque
A calcified plaque
A complicated plaque
A resolved plaque
In a patient with complicated plaque formation, which clinical finding is most expected?
Thrombocytopenia
Rapid thrombus formation
Absence of platelet activation
Elevated HDL levels
What is the best explanation for the therapeutic use of aspirin in atherosclerosis?
It widens vessels
It prevents platelet adhesion and clot formation
It dissolves lipid cores
It reduces smooth muscle migration
In older adults, peripheral artery disease (PAD) typically progresses because arterial walls stiffen and lumens narrow over time. Which statement best explains why symptoms often worsen with age?
PAD is unrelated to age and remains stable
PAD becomes more common and severe as vessels stiffen and narrow with age
PAD affects only upper extremities in older adults
PAD improves as inflammation declines in aging
Considering common risk factors, which patient profile is at highest risk for developing PAD?
A healthy, nonsmoking 20-year-old
A 35-year-old marathon runner without comorbidities
A 62-year-old smoker with diabetes
A 55-year-old non-smoker with consistently low glucose
PAD most commonly compromises blood flow in which vascular territory?
Carotid arteries supplying the brain
Lower-extremity arteries of the legs
Pulmonary veins returning oxygenated blood
Hepatic portal venous system
A patient reports severe calf pain during walking that resolves with rest. Which explanation best fits this presentation?
Venous insufficiency causing pooling
Arterial obstruction leading to intermittent ischemia (intermittent claudication)
Compensatory vasodilation of leg vessels
Neuropathic pain unrelated to perfusion
An elderly patient with PAD now experiences pain at rest in the foot. What does this new symptom most likely indicate?
Very early disease with good collateral flow
Transient stress response that will pass
Progressive tissue ischemia due to worsening arterial obstruction
Reversal of plaque formation and improved perfusion
During aerobic exercise, a patient with coronary artery obstruction develops chest pain. Which mechanism best accounts for this angina?
Exercise increases venous return and causes congestion
A narrowed coronary lumen cannot meet increased myocardial oxygen demand
Exercise reduces endothelial injury and triggers spasm
Lower LDL during exertion limits oxygen delivery
A patient is counseled that a partial arterial obstruction in the leg can cause which outcome during activity?
Only sudden infarction at rest
Immediate tissue death in the limb
Transient ischemic episodes provoked by exertion
No symptoms at all regardless of exertion
Which event most directly converts a non-obstructive atherosclerotic lesion into a complicated lesion?
Vasodilation of the affected artery
Calcification of the arterial wall
Plaque rupture with superimposed thrombosis
Increased HDL concentration
A patient with peripheral artery disease (PAD) develops tissue infarction in the lower limb. Which mechanism most likely explains this event?
Elevated HDL improving lipid transport
Sudden plaque rupture leading to thrombosis
Excessive vasodilation increasing blood flow
Increased arterial elasticity maintaining perfusion
Which clinical manifestation is most consistent with obstruction of vessels supplying the brain?
Intermittent claudication during walking
Stroke with focal neurological deficits
Pulmonary edema with dyspnea
Jugular venous distention at rest
A patient with PAD shows poor wound healing on the toes. What is the most likely underlying cause?
Low venous pressure limiting return
Inadequate tissue perfusion from arterial disease
Excessive inflammation at the wound site
Overuse injury of the extremity
During vascular assessment, which finding best supports a diagnosis of PAD?
Bounding pedal pulses on palpation
Audible arterial bruits over affected vessels
Warm, flushed extremities
Elevated HDL on lipid panel
A patient undergoing laboratory evaluation for suspected atherosclerosis has the following results. Which finding most supports the diagnosis?
Low fasting glucose level
Elevated LDL cholesterol concentration
Low C-reactive protein (CRP) level
Elevated oxygen saturation in arterial blood
High-sensitivity C-reactive protein (hs-CRP) is ordered during PAD evaluation primarily to detect which process?
Early renal disease progression
Inflammation associated with atherosclerosis
Insulin deficiency causing hyperglycemia
Adequacy of peripheral tissue perfusion
A 70-year-old patient with peripheral artery disease requires imaging to identify affected vessels. Which test is most appropriate?
Spirometry
CT or MRI to locate affected vessels
EEG
Chest x-ray only
Why is peripheral artery disease considered a major health issue?
It only affects young athletes
It is a leading cause of myocardial ischemia
It primarily affects veins
It resolves quickly with rest
A patient with severe peripheral artery disease reports inability to walk due to pain. What does this most likely reflect?
Minor disease
Significant ischemia from arterial obstruction
Venous pooling
Nerve damage only
Atherosclerosis is primarily driven by which underlying process?
Autoimmune destruction of arteries
Chronic inflammation of arterial walls
Viral infection
Congenital defects
Which statement best reflects the role of oxidative stress in atherosclerosis?
It converts LDL into a pro-inflammatory form
It prevents monocyte adhesion
It reduces foam cell formation
It decreases macrophage activity
Why do many atherosclerotic plaques remain clinically silent?
They cause acute pain early
They rarely affect the lumen
They may rupture before obstructing flow
They prevent inflammation
A patient with complicated plaque formation is at greatest risk for which outcome?
Vasodilation
Thrombosis leading to infarction
Hypertensive crisis
Hypermetabolism
Which patient statement reflects accurate understanding of a modifiable risk factor for peripheral arterial disease (PAD)?
"Since I don’t smoke, I can’t get PAD."
"Diabetes increases my risk for PAD."
"PAD mostly affects the arms."
"PAD disappears once cholesterol is normal."
A patient asks why their PAD symptoms worsen with activity. Which explanation best addresses the underlying physiology?
"Activity decreases blood pressure too much."
"Your muscles need more oxygen during exercise, but your arteries can’t supply it."
"Walking triggers venous pooling."
"Movement causes plaque rupture."
A diagnostic workup includes ultrasound and angiography. What is the primary purpose of these tests in PAD evaluation?
Assess the level of inflammation
Identify the exact location of arterial obstruction
Evaluate heart valve function
Estimate pulmonary pressures
A patient reports calf pain that resolves when they stop walking and rest. What is the most likely interpretation?
Peripheral neuropathy
Early PAD causing transient ischemia
Venous stasis
Musculoskeletal stress injury
