The initial<unk>  of acute coronary syndrome (ACS) begins with differentiation within the spectrum of ACS which includes;<unk> EMI, unstable angina and non-ST elevation myocardial infarction. As the symptoms for all these syndromes can be similar, a medical evaluation is necessary as mentioned in earlier sections (see UA / NSTEMI prehospital care and Unstable angina / non<unk>  elevation myocardial infarction initial therapy). Information from the history, physical examination, 12-lead ECG, and initial cardiac biomarker<unk> udies can help in differentiating between the above three categories as well as categorize the patient into probable or definite ACS, chronic<unk> able angina or non-cardiac cause of chest pain. Patients with<unk> EMI must be evaluated for<unk>  reperfusion therapy (see<unk>  Elevation Myocardial Infarction Reperfusion Therapy). Patients with unstable angina/NSTEMI, recurrent symptoms suggestive of ACS and/or electrocardiogram,<unk> -segment deviations, or positive cardiac biomarkers, who are hemodynamically<unk> able, should be admitted to an inpatient unit for bed rest with continuous rhythm monitoring and careful observation for recurrent ischemia. These patients should be managed with either an invasive or conservative<unk> rategy (see Unstable angina / non<unk>  elevation myocardial infarction initial conservative versus initial invasive<unk> rategies).
Unstable angina / non ST elevation myocardial infarction immediate management
ST elevation myocardial infarction initial care
ST elevation myocardial infarction rescue percutaneous coronary intervention
Unstable angina / non ST elevation myocardial infarction nitrate therapy
Unstable angina / non ST elevation myocardial infarction oxygen therapy
ST elevation myocardial infarction primary percutaneous coronary intervention
Unstable angina / non ST elevation myocardial infarction blood studies
Unstable angina / non ST elevation myocardial infarction aspirin therapy