DNR stands for 'Do Not Resuscitate,' which is a medical order indicating that a person does not want to receive CPR or other life-saving measures in the event of cardiac arrest or respiratory failure. This decision often arises from discussions about quality of life, terminal illness, or personal wishes regarding end-of-life care. DNR orders are part of broader conversations around patient rights and healthcare decisions, especially as they relate to environmental concerns and conservation efforts regarding healthcare resources.