Where should the V1 lead be applied?

The V1 lead is traditionally placed at the fourth intercostal space on the right sternal border. This positioning allows for optimal recording of the electrical activity of the heart, particularly from the right ventricle and the interventricular septum. It is essential in assessing certain arrhythmias and conduction issues that may arise in those areas of the heart.

Placing the V1 lead in this location provides a direct view of the heart's electrical activity, which can enhance the diagnosis of various cardiac conditions during an electrocardiogram (ECG). Each lead on an ECG gives a unique perspective of the heart's electrical function, and V1 specifically has its designated anatomical landmark to ensure consistency in readings and interpretations. The accuracy in lead placement is crucial for effective monitoring and diagnosing of cardiac health.