title: The dynamic nature of ST-segment and T-wave changes during acute MI.
abstract: Obtaining a prehospital 12-lead electrocardiogram (ECG) diagnostic of acute myocardial injury has been demonstrated to hasten the administration of thrombolytic agents in the emergency department. This case demonstrates that a prehospital electrocardiogram diagnostic of acute anterior wall infarction can become non-diagnostic following routine administration of oxygen, nitroglycerin, and morphine by paramedics. Although this phenomenon has been observed in the in-hospital setting, it has not been reported in patients with a prehospital ECG.
authors.affiliation: Department of Emergency Medicine, St. Joseph Medical Center, Tacoma, Washington 98405, USA.
authors.forename: R A
authors.initials: RA
authors.lastname: Harvey
authors.forename: F P
authors.initials: FP
authors.lastname: Fuller
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D004562:Electrocardiography; D004632:Emergency Medical Services; D005260:Female; D006801:Humans; D009203:Myocardial Infarction / Q000175:diagnosis* / Q000503:physiopathology*; D012680:Sensitivity and Specificity; D014861:Washington