Final answer:
A living will is the patient right that states patient preference at end-of-life. It is a written legal document that details specific interventions a person wants, such as a DNR order or a health care proxy.
Step-by-step explanation:
The patient right that states patient preference at end-of-life is a living will. A living will is a written legal document that details specific interventions a person wants at the end of their life. It can include instructions about whether or not to receive life-extending treatments, like a Do Not Resuscitate (DNR) order, which states that medical personnel should not revive or resuscitate the patient if their heart stops beating or they stop breathing. It can also include a health care proxy, which appoints a specific person to make medical decisions for the patient if they are unable to speak for themselves.