In what position are the V5 and V6 leads placed in relation to V4?

The V5 and V6 leads are placed horizontally to V4 as part of a 12-lead electrocardiogram (ECG) setup. V4 is located at the fifth intercostal space at the midclavicular line. V5 is positioned at the same horizontal level as V4 but moves to the left, placed at the anterior axillary line. V6 continues on this horizontal axis to the midaxillary line, which is also at the same vertical height as V4. This horizontal arrangement allows for the assessment of the lateral wall of the heart by capturing electrical signals that are relevant to this region.

This positioning results in a comprehensive view of the heart's electrical activity in the horizontal plane rather than changes in vertical positioning, which would be relevant for a different kind of placement (like those associated with other leads). The horizontal configuration between V4, V5, and V6 aids healthcare providers in diagnosing potential issues in heart function effectively.