Thrombus and Embolism

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Questions and Answers

What is thrombosis?

  • The coagulation of blood after death
  • The inappropriate activation of the normal hemostatic process within the cardiovascular system during life (correct)
  • The rupture of a blood vessel leading to hemorrhage
  • The normal clotting process during an injury

What are the main constituents of a thrombus?

  • Fibrin, platelets, and entrapped blood cells (correct)
  • White blood cells and red blood cells only
  • Collagen and elastin fibers
  • Plasma and clotting factors

What is Virchow’s triad in thrombosis?

  • The three types of blood clots
  • The three phases of blood coagulation
  • The three layers of a blood vessel involved in clot formation
  • The three primary factors promoting thrombosis: endothelial injury, alterations in blood flow, and alterations in blood constituents (correct)

Which of the following is NOT a factor that promotes thrombosis?

<p>Decreased platelet count (B)</p> Signup and view all the answers

Which of the following can cause alterations in vascular endothelium leading to thrombosis?

<p>Vasculitis (A)</p> Signup and view all the answers

Which of the following is NOT a cause of altered blood flow contributing to thrombosis?

<p>High blood pressure (C)</p> Signup and view all the answers

What is an example of an alteration in blood flow that promotes thrombosis?

<p>Aneurysms (A)</p> Signup and view all the answers

How does hypercoagulability contribute to thrombosis?

<p>By increasing coagulation factors and decreasing coagulation inhibitors (A)</p> Signup and view all the answers

What condition can lead to a decrease in coagulation inhibitors like Antithrombin III?

<p>Protein-losing nephropathy (A)</p> Signup and view all the answers

Which of the following are the two types of blood flow alterations that contribute to thrombus formation?

<p>Stasis and turbulence (B)</p> Signup and view all the answers

How does stasis contribute to thrombus formation?

<p>It allows activated clotting factors and platelets to accumulate, increasing clot formation. (B)</p> Signup and view all the answers

Flashcards

What is Thrombosis?

Inappropriate activation of normal hemostatic processes within the cardiovascular system during life.

Main thrombus constituents?

Fibrin, platelets, and entrapped blood cells.

Virchow’s Triad

Endothelial injury, alterations in blood flow, and alterations in blood constituents.

What is Vasculitis?

Vascular inflammation.

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What is an Aneurysm?

Abnormal widening of an artery.

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Hypercoagulability

Increases coagulation factors and decreases coagulation inhibitors.

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Protein-losing nephropathy

Leads to loss of proteins, including antithrombin III, in the urine.

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Blood flow alterations

Stasis and turbulence.

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How Stasis Promotes Thrombosis

Activated factors and platelets accumulate, increasing clot formation.

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