The deficiency of all the following factors increases the incidence of thrombus formation except: (A) Lipoprotein A, (B) Protein C, (C) Anti-thrombin III, (D) Protein-S
Answer is A. . Because deficiencies of antithrombin III,protein C ,pritein S,factor V of Leiden,thrombophila etc are the causes of thrombus formation. Refer page no 223 of SRB's manual of surgery 5th edition.