Brian A

Above or below? It is not about the breasts it is about the intercostal spaces. With research and asking 12 lead experts like Bob Page, here is the best answer I have heard. In most women, you cannot palpate the 5th ICS, mid-clavicular line because of the amount of breast tissue. In that case the leads go below the breast. However, there are those cases with larger breasts, that have moved south over time, where you can clearly palpate the location of V4. In those cases then the leads go above the breast and on the correct intercostal spaces. "It is bones not breasts".