Peripheral artery aneurysm can lead to clot formation that blocks blood flow to which areas?

• A. Lungs
• B. Brain and limbs
• C. Heart
• D. Skin

Answer: (B)

When a peripheral artery aneurysm forms a thrombus, pieces can break off and travel downstream in the arterial system. These emboli can lodge in small arteries supplying various organs, most notably the brain and the limbs, causing abrupt loss of blood flow and risk of stroke or limb ischemia. The lungs are typically affected by emboli that originate in the venous system (pulmonary embolism), not by arterial emboli from a peripheral aneurysm. While emboli could theoretically reach the heart or skin, brain and limbs are the most clinically significant targets for this type of embolization.