What are precordial leads commonly referred to as?

Precordial leads are commonly referred to as chest leads because they are placed on the chest wall to provide a view of the heart's electrical activity from different angles. These leads help in analyzing the heart's function and diagnosing various cardiovascular conditions by recording the electrical signals directly from the thoracic area. Unlike limb leads, which are placed on the arms and legs, chest leads are specifically designed to capture the electrical impulses as they travel through the heart and can offer critical insights into the heart's condition and any potential abnormalities.