Case 111: A 59-Year-Old Man with Chest Pain
History
Diagnosis
ECG 2
ECG 2 Diagnosis
History
A 59-year-old man presents to the Emergency Department, reporting chest pain for the past 45 minutes: 
Diagnosis
- Lead error, right arm – left arm reversal
- Probably sinus rhythm
- Inferior-posterior infarction, age undetermined
ECG 2
A new ECG was recorded within 10 minutes, with particular attention to correct lead placement:
ECG 2 Diagnosis
- The previous ECG had been incorrectly recorded (right arm – left arm reversal)
- Sinus Rhythm, 92/min
- Inferior – posterior infarction, age undetermined
ECG ID: E405