Raised aPTT is seen in all of the following bleeding disorder except: March 2009
Ans. D: Henoch - Schonlein purpuraThe paial thromboplastin time (PTT) or activated paial thromboplastin time (aPTT/ APTT) is a performance indicator measuring the efficacy of both the "intrinsic" (contact activation pathway) and the common coagulation pathways. Apa from detecting abnormalities in blood clotting, it is also used to monitor the treatment effects with heparin, a major anticoagulant.
Hemophilia A
Hemophilia B
Von-Willebrand disease
Henoch - Schonlein purpura