Where is the V2 electrode placed for a 12 lead ECG?

The placement of the V2 electrode is critical for obtaining a proper 12-lead ECG, as it provides important information about the anterior and lateral walls of the heart. The V2 electrode is positioned in the fourth intercostal space, just to the left of the sternum. This location is essential because it allows for optimal detection of electrical activity in the left ventricle and can help identify any potential ischemia or other cardiac conditions affecting the heart's anterior wall.

By placing the V2 electrode in this specific location, it enhances the ability to assess changes in the heart's electrical activity during various pathologies, such as myocardial infarction. Additionally, correct electrode placement minimizes interference from surrounding structures and ensures a clearer ECG reading, thereby aiding in accurate diagnosis and treatment planning.