When patients and family members are asked about their preferences for end-of-life care, they often face decisions about signing specific documents, including a Do Not Intubate order (DNI) or a Do Not Resuscitate order (DNR). Here https://myallamericanhospice.com/dni-orders-imply-medical-field/ is more about dni meaning medical
But, both orders give clinicians instructions about the measures a patient wants or does not want; for example, if they lose consciousness, cannot breathe on their own, or face other serious symptoms or complications that could interfere with long-term quality of life.
