Dr. Carter, I Presume

Carter begins the first day of his internship with the difficult task of filling in for Benton as the ER surgery consult. Jeanie makes difficult decision regarding her HIV-positive status; Peter's test comes back negative. Weaver implements an incoherent system for tracking patients. The ER staff attends a Fourth of July softball game, where Carol runs into Shep and his new girlfriend. Peter runs into an old friend, Carla Reese, at Jackie and Walt's barbecue.