Practice Level 3 Case 23: A 43-Year-Old Man in the Pre-anaesthesia Clinic History Diagnosis ECG 2 ECG 2 Diagnosis History Routine ECG tracing of a 45 year old man scheduled to undergo knee surgery following an accidental trauma: Diagnosis Left arm cable/electrode detached or nonfunctional (lead I has not been recorded)This precludes the interpretation of the limb leadThe chest leads are normal ECG 2 An ECG is obtained with a different recorder: ECG 2 Diagnosis Sinus rhythm, 90/minRightward QRS axisA borderline tracing, probably normal ECG ID: E614 Bookmark Please login to bookmark Username or Email Address Password Remember Me No account yet? Register