Such Sweet Sorrow

When Carol resuscitates a terminal cancer DNR so that she can say goodbye to her family, she realizes that life is too short; after saying a quick goodbye to Luka and Mark, she runs out of the hospital and hops a plane to Seattle to see Doug. Carter's mental stability has deteriorated to the point where he almost kills a woman. Chen notices and tells Mark her concern that Carter is bipolar. Weaver goes on the warpath after noticing staff members taking shortcuts in their work, including Abby, who discharges a woman prematurely without running extra tests. Corday offers Malucci a sobering assessment of his performance. Mark prepares to bury his father, and enjoys his daughter's company.