Take-Home Points Always consider STEMI as the diagnosis prior to diagnosing pericarditis. If the EKG shows convex ST elevations, reciprocal ST depressions, or dynamic changes, the patient is much more likely to have a STEMI. Patients with pericarditis should be treated with a combination of NSAID/Aspirin and Colchicine Patients with large pericardial effusions, tachycardia out ... Read more