Case: A 3-YOA female with normal PT and prolonged PTT and no bleeding. What is the most likely deficiency?

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Factor V

4% (3 votes)

Factor VIII

20% (16 votes)

Factor IX

4% (3 votes)

Factor XI

8% (6 votes)

Factor XII

59% (47 votes)

Factor XIII

6% (5 votes)

Total votes: 80