A patient has normal PT and Platelet Count. The aPTT is increased and factor VIII levels are observed to be 60 lukIL (60%). There is no associated history of bleeding even after a surgical procedure. The most likely diagnosis is:: (A) Factor IX deficiency, (B) Factor VIII inhibitors, (C) Lupus anticoagulant, (D) Thalassemia
Answer is C. Answer is C (Lupus Anticoagulant) Isolated prolongation of aPTT with no clinical history of bleeding suggests the presence of Lupus anticoagulant or deficiency of contact factors (Factor XII, Prekallikrein or HMWK)