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Multiple Choice

Virchow's triad consists of stasis, vascular injury, and hypercoagulability. Which statement is accurate?

Virchow's triad describes conditions that tilt the balance toward clot formation: stasis, vascular injury, and hypercoagulability. Stasis slows the washout of clotting factors and platelets, allowing a thrombus to form more easily, especially in the veins where flow is slower. Vascular injury exposes subendothelial structures and tissue factor, promoting platelet adhesion and activation of the coagulation cascade. Hypercoagulability means there’s an increased tendency for blood to clot due to elevated procoagulant factors or deficiencies in anticoagulants. Together these factors explain why thrombosis is more likely to occur. So, the statement that these factors describe things that promote thrombosis is accurate. They’re not about preventing thrombosis, they aren’t unrelated to thrombosis, and while they’re commonly discussed in the context of venous thrombosis, they’re relevant to thrombus formation in general, not limited to arteries.

Virchow's triad describes conditions that tilt the balance toward clot formation: stasis, vascular injury, and hypercoagulability. Stasis slows the washout of clotting factors and platelets, allowing a thrombus to form more easily, especially in the veins where flow is slower. Vascular injury exposes subendothelial structures and tissue factor, promoting platelet adhesion and activation of the coagulation cascade. Hypercoagulability means there’s an increased tendency for blood to clot due to elevated procoagulant factors or deficiencies in anticoagulants. Together these factors explain why thrombosis is more likely to occur.

So, the statement that these factors describe things that promote thrombosis is accurate. They’re not about preventing thrombosis, they aren’t unrelated to thrombosis, and while they’re commonly discussed in the context of venous thrombosis, they’re relevant to thrombus formation in general, not limited to arteries.