Anaesthesia Diagnosis of arrhythmias is better shown by which ECG lead during intraoperative monitoring of their electrocardiogram (ECG). A Lead v2 B Lead III C Lead I D Lead II 💡 Explanation Diagnosis of arrhythmias is better shown by which ECG lead during intraoperative monitoring of their electrocardiogram (ECG). ✓ Correct Answer: D. Lead II