The coagulation profile in a 13-year old girl with Menorrhagia having Von Willebrands disease is:: (A) Isolated prolonged PTT with a normal PT, (B) Isolated prolonged PT with a normal PTT, (C) Prolongation of both PT and PTT, (D) Prolongation of thrombin time
Answer is A. Answer is A (Isolated prolonged PTT with a normal PT) Von Willebrand disease is characterized by prolonged bleeding time and a prolonged PTT. The prothrombin time is normal.