"Do not resuscitate" order and end-of-life treatment in a cohort of deceased in a Norwegian University Hospital.

Background: A "Do not resuscitate" (DNR) order implies that cardiopulmonary resuscitation will not be started. Absent or delayed DNR orders in advanced chronic disease may indicate suboptimal communication about disease stage, prognosis, and treatment goals. The study objective was to determine clinical practice and patient involvement regarding DNR and the prevalence of life-prolonging treatment in the last week of life.