V1 - 4th Intercostal space to the right of the sternum V2 - 4th Intercostal space to the left of the sternum V3 - Midway between V2 and V4 V4 - 5th Intercostal space at the midclavicular line V5 - Anterior axillary line at the same level as V4 V6 - Midaxillary line at the same level as V4 and V5