A patient with Von Willebrand disease experiences prolonged bleeding after a minor injury. Which mechanism is impaired, resulting in this extended bleeding time?

💡 Explanation

Impaired primary hemostasis occurs because Von Willebrand factor is crucial for platelet adhesion to the subendothelium at the injury site, initiating clot formation. Therefore, reduced VWF leads to ineffective platelet plug formation and prolonged bleeding, rather than impacting blood cell production or inflammatory responses.

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