What happens if your coded and have silicon breasts?

Proceed as usual. It is unlikely that normal chest compression will interfere with the breast implants and it is unlikely that the breast implants will interfere with properly performed breast compressions.
Nothing different… In the event of a cardiac arrest, patients are resuscitated “normally” with breast implants in place. In other words, management is not altered. Best wishes.
Nothing different. The implants will not change the way your are treated. And they will not interfere with treatment.
Nothing. If you code, CPR is performed but the area compressed is not the breast but the sternum, or chest bone. So rest assured, your implants will be safe!