Exploration of Portal Activation by Patients in a Healthcare System Patricia J. Mook, MSN, RN, NEA-BC, CAHIMS, Amber W. Trickey, PhD, MS, CPH, ... American, 19% Asian Pacific Islander, and 16% Hispanic. More than one in five residents (21%) are employed by fed- ... cluded all patients accessing the portal system at any point in the continuum of ....