(3)An advanced registered nurse practitioner shall perform those functions authorized in this section within the framework of an established protocol which must be maintained on site at the location or locations at which an advanced registered nurse practitioner practices. In the case of multiple supervising physicians in the same group, an advanced registered nurse practitioner must enter into a supervisory protocol with at least one physician within the physician group practice. A practitioner currently licensed under chapter 458, chapter 459, or chapter 466 shall maintain supervision for directing the specific course of medical treatment. Within the established framework, an advanced registered nurse practitioner may: see full law