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13210 Medicine

A 19-year-old man has had recurrent bleeding occur in his knee when playing contact sports. He has no history of spontaneous bleeding, but his brother had similar problems. Consultation with a specialist reveals that he has “mild” hemophilia A. Which of the following factor abnormalities is consistent with this diagnosis?

Aabnormal factor VIII function
Bdecreased levels of functional factor VIII
Cdecreased factor IX level
Ddecreased von Willebrand factor
Medicine
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