preferred_name: Assist with diagnostic tests and assessments to rule out conditions with similar signs and symptoms (e.g., acute myocardial infarction; pericarditis; aortic dissection; pneumonia; pneumothorax; anxiety with hyperventilation; asthma; heart failure; pericardial tamponade; and gastrointestinal abnormalities such as peptic ulcer, esophageal rupture, gastritis)