Problem: The practical nurse (PN) assignment is unsafe and is considering invoking a safe harbor. Which elements of unsafe harbor are essential for the PN to consider before proceeding? Need Assignment Help? Select all that apply. A Action should be invoked before work shift begins. B Notification to the supervisor must occur within 72 hours of the seringment. C Agency policies and state laws must be considered by the individual PIL D Protection may be provided for actions taken against the Pirs licerse. E An assignment that was made that violates the Phis duty to the diert.