Rania Schreiber, MSN, RN, a nursing practice leader with UI Health Care, was walking her usual route to her car after work on Feb. 7 when she saw a woman headed past her with visible injuries on her face. The woman was Mary Ellen Lewis, a volunteer at UI Health Care, who had fallen on the sidewalk near Duane Banks Field and was now trying to wipe up the blood with some napkins. “Mary Ellen’s face…