Peripheral arterial disease develops due to:

Question

BlackTom AI · Accepted Answer

Peripheral arterial disease (PAD) is a condition characterized by reduced blood flow to the limbs due to obstruction of the arteries, most commonly from atherosclerotic changes. 
Option 1 states 'Venous blockages causing a DVT' which involves the venous system; PAD is an arterial problem, not a venous one, so this is not the mechanism behind PAD.
Option 2 suggests 'Superficial blockage causing thrombophlebitis'; while thrombophlebitis affects veins and superficial veins in particular, PAD concerns the deeper arterial supply and plaque buildup rather than superficial venous blockage. 
Option 3 mentions 'Venous defects causing varicose veins'; varicose veins are venous and structural venous dilation issues, not the arterial occlusive process that drives PAD. 
Option 4 'Atherosclerotic plaques' correctly identifies the core pathophysiology of PAD: accumulation of lipid-rich atherosclerotic plaques within the arterial intima leading to narrowing or occlusion of arteries and reduced distal perfusion. 
Together, the first three options describe processes that are venous or non-arterial, whereas the fourth option aligns with the established arterial disease mechanism underlying PAD.

Peripheral arterial disease develops due to:单项选择题

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