UKMLA PLAB AMC USMLE Prometric MCQ

Question Number 0815

Question:
A 57 year male in-patient has a warm, swollen leg. There is tenderness, edema, and a positive Homan's sign. Doppler examination shows thrombosis. He is given heparin for a little over a week. His doctor also starts him on coumadin. Coumadin inhibits the vitamin K dependent clotting factors. Which of the following is a vitamin K dependent cofactor?

a) I
b) II
c) III
d) IV
e) V