Hemostasis is the physiological process that controls bleeding at the site of vessel injury through blood coagulation and clot formation. When the vascular endothelial lining is disrupted, platelets attach to exposed collagen at the site of injury, triggering coagulation reactions that lead to fibrin deposition and clot formation. https://www.zupyak.com/p/4503841/t/hemostasis-diagnostic-tests-methods-for-evaluation-bleeding-and-clotting-disorders