Emergency department approach to chest pain

ACLS: advanced cardiac life support; ACS: acute coronary syndrome; ASA: aspirin; CCTA: coronary CT angiography; CT: computed tomography; CXR: chest x-ray; ECG: electrocardiogram; HF: heart failure; IV: intravenous; MRI: magnetic resonance imaging; NSTEMI: non-ST-elevation myocardial infarction; PCI: percutaneous coronary intervention; PE: pulmonary embolism; STEMI: ST-elevation myocardial infarction; V/Q: ventilation perfusion scan.