Allow Natural Death (AND) is a medical term defining the use of life-extending measures such as cardiopulmonary resuscitation (CPR). These orders emphasize patient comfort and pain management instead of life extension. Currently, American medical communities utilize "do not resuscitate," (DNR) orders to define patients' medical wishes. Those who propose to replace DNR with AND posit that DNR orders are ambiguous and require complex understanding between several parties, while AND orders are clearer. Proponents of replacing DNR with AND believe that AND terminology is more ethically conscientious DNR terminology. Research has been conducted regarding participant preference for AND vs. DNR terminology. The ease with which the terminology change can be practically incorporated depends on many factors such as costs and staff reeducation.