True about vitamin K is:
Ans. (B) Long term use of antimicrobials can cause deficiency of vitamin K(Ref: KDT 8/e p661)Vitamin K is involved in activation of factor II, VII, IX and X (not synthesis)It is a fat soluble vitamin like Vitamin A, D and E. Vitamin B and C are water soluble.Warfarin (an inhibitor of vitamin K) is used for treatment of DVT.Long term antimicrobial use can alter gut flora leading to deficiency of vitamin K.
It is required for synthesis of factor VII
Long term use of antimicrobials can cause deficiency of vitamin K
It is a water soluble vitamin
DVT is associated with vitamin K deficiency
Hematology