Hemophilia A: Factor VIII Deficiency Quiz
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Hemophilia A: Factor VIII Deficiency Quiz

Created by
@DurableTensor

Questions and Answers

What is the main factor deficiency seen in hemophilia?

Factor VIII

Which coagulation factor is responsible for initiating thrombin formation in hemophilia?

Factor VIII

What kind of mutations can be found on the Factor VIII locus in hemophilia?

Severe molecular defects (large deletions, intron 22 inversions, nonsense mutations) or milder molecular defects like point mutations

What is the consequence of lacking Factor VIII as a cofactor in hemophilia?

<p>Slows the rate of FXa generation</p> Signup and view all the answers

Why does bleeding occur in hemophilia?

<p>Defective fibrin stabilization due to inadequate fibrin generation</p> Signup and view all the answers

Where does bleeding commonly occur in patients with hemophilia?

<p>Load-bearing joints (ankles, knees, elbows) and intracapsular bleeds</p> Signup and view all the answers

What is the commonest cause of death in hemophilia?

<p>CNS bleeding</p> Signup and view all the answers

What does a full haemogram typically show in hemophilia?

<p>Normal to low Hb/hct values, normal platelet count</p> Signup and view all the answers

What symptoms may patients with hemophilia present with depending on their Factor VIII activity level?

<p>Easy bruising, inadequate clotting of traumatic or mild injury, spontaneous hemorrhage in severe cases</p> Signup and view all the answers

What is the role of Factor VIII in the coagulation cascade?

<p>Initiate thrombin formation for adequate fibrin generation</p> Signup and view all the answers

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