<prompt> Not a vit. K dependent factor:IIVIIIXXII  <response>: D i.e. XII- Vit K dependent factors: factor II prothrombin, VII, IX, X protein C and SQ- Vit K is a necessary cofactor for the enzyme that catalyzes carboxylation of glutamic residue in these proteins, necessary for their action- PT is first to be prolonged in Vit K deficiency.Q factor VII has sho t12 