The coagulation profile in a 13 year old girl with menorrhagia having von Willebrand&;s 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. In vonwillebrand disease aPTT will be prolonged and PT will be normal. Reference: GHAI Essential pediatrics, 8th edition