Master the Intricacies of Perfusion
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Questions and Answers

Which of the following is NOT a step in the process of hemostasis?

  • Activation of plasma coagulation
  • Activation of platelets
  • Initiation of fibrinolysis (correct)
  • Release of inhibitors

    • Which of the following is responsible for vasoconstriction during hemostasis?

  • Platelets (correct)
  • Tissue factor
  • Fibrinolysis
  • Complement inhibitors

    • Which of the following factors is NOT synthesized by the liver?

  • Factor V
  • Factor VIII
  • Factor II
  • Factor XI (correct)

    • Which of the following is responsible for converting fibrinogen to fibrin?

    <p>Thrombin</p> Signup and view all the answers

    Which of the following is NOT a function of coagulation factors?

    <p>Platelet activation</p> Signup and view all the answers

    Which of the following is responsible for platelet aggregation?

    <p>Thrombin</p> Signup and view all the answers

    Which of the following is responsible for regulating coagulation reactions?

    <p>Factor V</p> Signup and view all the answers

    Which of the following is responsible for the formation of platelets?

    <p>Megakaryocyte</p> Signup and view all the answers

    Which of the following is NOT a step in the process of hemostasis?

    <p>Initiation of fibrinolysis</p> Signup and view all the answers

    Which factor deficiency was identified in John Hageman?

    <p>Factor XII deficiency</p> Signup and view all the answers

    What was the cause of John Hageman's death?

    <p>Pulmonary embolism</p> Signup and view all the answers

    What is the physiological activator of normal hemostasis?

    <p>Factor VIIa</p> Signup and view all the answers

    Which protein is a major physiological inhibitor of coagulation?

    <p>Protein C</p> Signup and view all the answers

    What is the role of Protein S?

    <p>Cofactor for Protein C</p> Signup and view all the answers

    What is the function of Activated Protein C (APC)?

    <p>Inactivates Factors V and VIII</p> Signup and view all the answers

    What does the TFPI/FXa complex inhibit?

    <p>TF/FVIIa</p> Signup and view all the answers

    What is the role of Antithrombin III?

    <p>Binds and inhibits Thrombin (IIa) and active clotting Factors Xa, IXa, XIa</p> Signup and view all the answers

    What increases the activity of Antithrombin III by several thousand-fold?

    <p>Heparin</p> Signup and view all the answers

    What is a rare disorder characterized by Congenital ATIII deficiency?

    <p>Protein C deficiency</p> Signup and view all the answers

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