The Bottom Line: To further reduce risk of ischemic events secondary to thrombosis, accompanying medical therapy with acetylsalicylic acid, clopidogrel or another adenosine diphosphate antagonist, glycoprotein IIb/IIIa inhibitors, and either low-molecular-weight heparin or unfractionated heparin in the appropriate setting
Sami. Contemporary treatment of unstable angina and non-ST-segment-elevation myocardial infarction (part 2). Texas Heart Institute journal 2010 vol:37 iss:3 pg:262 -275
ACC/AHA Guidelines state patients with NSTEMI should receive heparin unless contraindicated. Even though optimal duration of heparin therapy is not well established, most trials recommend UA/NSTEMI patients continuing heparin therapy for 2 to 5 days.