Pathophysiology Chapter 22: Disorders of Hemostasis Quiz
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Questions and Answers

What can cause circulatory collapse and low hemoglobin/hematocrit levels?

  • Chronic blood loss (correct)
  • Vitamin B12 deficiency
  • Excessive red blood cell production
  • Impaired oxygen transport

Which type of anemia is characterized by normocytic and normochromic red blood cells?

  • Sickle cell disease
  • Hemolytic anemia (correct)
  • Iron deficiency anemia
  • Megaloblastic anemia

What is the main cause of megaloblastic anemia?

  • Increased iron absorption
  • Impaired DNA synthesis (correct)
  • Excessive bleeding
  • Defective RBC production

Which of the following can trigger sickling episodes in sickle cell disease?

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

Aplastic anemia affects which of the following?

<p>All three hematopoietic cell lines (C)</p> Signup and view all the answers

Which condition is characterized by abnormally high red blood cell mass?

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

What does sickle cell disease result from?

<p>Defective hemoglobin (D)</p> Signup and view all the answers

What symptoms can Vitamin B12 deficiency lead to?

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

What can cause iron deficiency anemia?

<p>Inadequate iron for hemoglobin synthesis (C)</p> Signup and view all the answers

What initiates vessel spasm in hemostasis?

<p>Endothelial injury (C)</p> Signup and view all the answers

What characterizes megaloblastic anemia?

<p>Enlarged red blood cells (B)</p> Signup and view all the answers

Which protein molecule is required for platelet adhesion during the formation of the Platelet Plug?

<p>Von Willebrand factor (C)</p> Signup and view all the answers

Which clotting factors are synthesized in the liver using Vitamin K?

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

Which pathway results in faster clotting, typically within 15 seconds?

<p>Extrinsic pathway (C)</p> Signup and view all the answers

What is the main process involved in Clot Retraction?

<p>Joining of broken blood vessel edges (B)</p> Signup and view all the answers

What is the primary process in Clot Dissolution (Fibrinolysis)?

<p>Plasmin digestion of fibrin strands (C)</p> Signup and view all the answers

Which condition is an exaggerated form of hemostasis that predisposes to thrombosis and blood vessel occlusion?

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

'Venous stasis' leading to prolonged bed rest or immobility can result in increased risk of what condition?

<p>(VTE) Venous Thromboembolism (D)</p> Signup and view all the answers

'Thrombocytopenia' is characterized by a reduction in platelet number to less than what value?

<p>$150,000$ (B)</p> Signup and view all the answers

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