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Discussion Starter · #1 ·
A 24-year-old patient with a congenital bleeding disorder undergoes routine laboratory testing. Relevant results include:

Leukocyte count: 4,900/mm3
Hemoglobin: 14.4 g/dL
Hematocrit: 43%
Platelet count: 147,000/mm3
Bleeding time: 12 minutes
Prothrombin time: 13 seconds
Partial thromboplastin time (activated): 33 seconds

Which is the likely diagnosis?
A. Bernard-Soulier disease
B. von Willebrand’s disease
C. Idiopathic thrombocytopenic purpura
D. Factor IX deficiency
E. Hemolytic uremic syndrome
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