What is the difference between prothrombin and thrombin?

Which of the following does not promote multiple steps in the clotting pathway?a. platelet phospholipids,b. factor XI,c. thrombin,d. Ca²⁺.

Multiple ChoiceMore than one choice may apply.A condition resulting from thrombocytopenia isa. thrombus formation.b. embolus formation.c. petechiae.d. hemophilia.

___and ____affect almost every aspect of the clotting process. (a) Calcium, vitamin K, (b) Calcium, vitamin B12,(c) Sodium, vitamin K, (d) Sodium, vitamin B12.

Multiple ChoiceMore than one choice may apply.Place the letters of these events in the order they occur during hemostasis.a. b. c. d.

a. Define fibrinolysis.b. What is the importance of this process?

What contribution from the intrinsic and the extrinsic pathways is necessary for the common pathway to begin?

a. How is clot overgrowth usually prevented?b. List two conditions that may lead to unnecessary (and undesirable) clot formation.

a. Define hemostasis.b. List the three major phases of coagulation. Explain what initiates each phase and what the phase accomplishes.c. In what general way do the intrinsic and extrinsic mechanisms of clotting differ?d. Which ion is essential to virtually all stages of coagulation?