<prompt> Coagulation testing in needed for:-LepirudinEnoxaparinFondaparinuxDabigatran  <response>: Coagulation testing is mainly done for: Warfarinvitamin K antagonist : it is monitored by prothrombin timePT or International Normalised RatioINR. Unfractionated Heparin : it is monitered by aPTT. Other anti-coagulants requiring monitoring are direct thrombin inhibitors like: Lepirudin Bivalirudin They require monitoring by aPTT. Recently, new oral anti-coagulants are developed which do not require monitoring, e.g. include : Dabigatrandirect thrombin inhibitor Epixabanfactor XA inhibitors Fondaparinux and Low molecular weight heparin indirect thrombin inhibitors do not require monitoring. 