Patients should sign a "Do Not Resuscitate" form if they are near the end of life or have serious illnesses that can not improve and do not wish to have CPR performed, notes MedlinePlus. Doctors can issue an order expressing these wishes for patients.
For patients in the hospital, doctors write the "Do Not Resuscitate" order on their hospital charts, notes MedlinePlus. Doctors can also help patients obtain documents expressing the patients' wishes to have at-home or other non-hospital settings. The Emergency Medical Services Authority in California offers a form on its site. MedlinePlus encourages patients to express their wishes in a living will or health care power of attorney and to tell their friends and family about their decision.