Practice Level 3 Case 60: A 73-Year-Old Man in the Emergency with Chest Pain History Diagnosis ECG 2 ECG 2 Diagnosis History A 73-year-old man in the Emergency Department with epigastric pain of 30 min duration: Diagnosis Suspect lead errorRight arm – left arm reversalPlease, repeat ECG. ECG 2 An ECG is recorded 15 minutes later, with special attention to correct lead placement: ECG 2 Diagnosis The previous tracing had been inccorrectly recorded (right arm – left arm reversal)Sinus tachycardia, 114/minOtherwise normal ECG ID: E404 Bookmark Please login to bookmark Username or Email Address Password Remember Me No account yet? Register