IASN promotes wellness and educational success of school communities by supporting, developing, and advocating for professional school nurse leaders. We advocate for all children through School Nursing Services. Illinois Association of School Nurses The Illinois Association of School Nurses (IASN) is a professional association for school nurses in Illinois IASN members also belong to the National Association of School Nurses Through conferences, meetings, printed materials, and web postings, the IASN informs its membership of current and emerging health care and legal issues affecting health care in schools, and fosters comunication and collaboration among its members The IASN also provides education to other organizations.