Hemophilia B: Clinical Presentations and Characteristics

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Questions and Answers

What causes bleeding to occur after extraction or surgical intervention in patients with hemophilia A and B?

  • Delayed platelet plug formation (correct)
  • Normal platelet count
  • Abnormal lacet test
  • Reduced thrombin time

Why does bleeding start immediately after extraction or surgical intervention in patients with normal coagulation parameters?

  • Increased thrombin time
  • Abnormal lacer test
  • Delayed platelet plug formation (correct)
  • Low platelet count

Which factor deficiency characterizes hemophilia A?

  • Factor V deficiency
  • Factor IX deficiency
  • Factor VIII deficiency (correct)
  • Factor II deficiency

Why do patients with hemophilia A and B typically experience spontaneous bleeding in joints and muscles?

<p>Impaired clot formation due to fibrin deficiency (A)</p> Signup and view all the answers

What is the factor deficiency in hemophilia B?

<p>Factor IX (C)</p> Signup and view all the answers

What should be requested by dentists in patients undergoing dental procedures to assess bleeding risk?

<p>Bleeding time, clotting time, and Partial Thromboplastin Time (PTT) (A)</p> Signup and view all the answers

What distinguishes hemophilia C from hemophilia A and B?

<p>Factor XI deficiency (A)</p> Signup and view all the answers

How does aspirin affect platelet functions when used continuously in small doses?

<p>Impairs platelet functions for 7-10 days (C)</p> Signup and view all the answers

In patients with chronic renal failure undergoing peritoneal dialysis and hemodialysis, when do platelet dysfunctions typically occur?

<p>24-48 hours after the procedure (C)</p> Signup and view all the answers

What is the characteristic inheritance pattern of hemophilia A?

<p>X-linked recessive (B)</p> Signup and view all the answers

Which factor deficiency characterizes Hemophilia A?

<p>Factor VIII deficiency (A)</p> Signup and view all the answers

What is the effect of Hemophilia A on bleeding time and clotting time?

<p>Bleeding time is prolonged, clotting time is normal (C)</p> Signup and view all the answers

What is the key factor in the management of bleeding time during dental procedures in patients with von Willebrand Disease?

<p>Administering desmopressin (D)</p> Signup and view all the answers

Why is antibiotic prophylaxis important for patients with hemophilia A before dental procedures?

<p>To reduce the risk of bacterial endocarditis (B)</p> Signup and view all the answers

Which of the following oral manifestations is NOT typically associated with hemophilia B?

<p>Swollen parotid glands (C)</p> Signup and view all the answers

In patients with hemophilia A, which factor is deficient leading to impaired blood clotting?

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

What radiographic feature is commonly observed in patients with parahemophilia due to factor V deficiency?

<p>Hair-on-end appearance (C)</p> Signup and view all the answers

What is the most common hereditary cause of spontaneous intraoral bleeding?

<p>Von Willebrand Disease (D)</p> Signup and view all the answers

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