Which of the following vitamin is required for the synthesis of blood clotting factors?: (A) Vitamin K, (B) Vitamin C, (C) Riboflavin, (D) Cobalamin
Answer is A. VITAMIN K IS REQUIRED FOR SYNTHESIS OF BLOOD-CLOTTING PROTEINS Antagonists of vitamin K are used to reduce blood coagulation in patients at risk of thrombosis; the most widely used is warfarin. Reference: Harper; 30th edition; Page no: 553