There are to chest leads used in the emergency room. one is V1 and the other is?

The other chest lead used in the emergency room is V2. Both V1 and V2 are placed on the anterior chest wall to provide important information about the heart's electrical activity, particularly in assessing conditions such as myocardial infarction. V1 is positioned in the fourth intercostal space at the right sternal border, while V2 is placed in the fourth intercostal space at the left sternal border.