Hemophilia B is caused by a deficiency of which clotting factor?
A)V
B)VIII
C)IX
D)X

Name: Hemophilia B is caused by a deficiency of which clotting factor? A)V B)VIII C)IX D)X
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Question

Quizplus · Accepted Answer

Only factor IX deficiency causes hemophilia B (Christmas disease). Factor VIII causes hemophilia A or classic hemophilia. Elimination of coagulation factor IX leads to a very severe form of hemophilia A. Deficiency of factor V can lead to a tendency for hemorrhage but can also contain mutations that lead to thrombosis.

Hemophilia B Is Caused by a Deficiency of Which Clotting