Arrange the following in the sequential order of appearance during intrinsic clotting pathway: A. Phospholipid B. Prekallikrien C. Activated factor V D. Factor XIII: (A) B-A-C-D, (B) A-C-D-B, (C) D-B-A-C, (D) B-D-C-A
Answer is A. TFI - tissue factor pathway inhibitor; TPL - tissue thromboplastin; PL - phospholipid