<prompt> A 55 year-old man with unstable angina is treated with an intravenously administered glycoprotein IIb - IIIa inhibitor. The mechanism of action of this agent is the ability to.Dilate coronary arteriesInhibit platelet aggregationInhibit platelet adhesionInhibit atherogenesis  <response>: Solution:Glycoprotein IIb - IIIaPrevent the action of the platelet surface receptor glycoprotein complex, which is mrequired for formation of fibrinogen bridges between adjacent platelets.Thus inhibiting platelet aggregation. 