What precordial lead is placed at the 4th intercostal space on the right sternal border?

The precordial lead that is placed at the 4th intercostal space on the right sternal border is V1. This positioning is important for accurately assessing the heart’s electrical activity. The V1 lead helps to capture the electrical signals from the right ventricle and provides valuable information about the anterior and septal walls of the heart.

The placement of V1 in this specific location ensures optimal visualization of electrical activity, allowing for proper diagnosis and monitoring of various cardiac conditions. Understanding lead positioning and its significance helps clinicians interpret ECG readings effectively.