Final answer:
A living will is a legal document that specifies a person's medical care preferences if they are unable to make decisions. It can include a health care proxy and a Do Not Resuscitate Order.
Step-by-step explanation:
A living will is a written legal document that details specific interventions a person wants regarding medical care if they become unable to make decisions. It can include instructions about life-extending treatments and appointing a health care proxy to make decisions on their behalf. A Do Not Resuscitate (DNR) Order can also be included, stating that medical personnel should not attempt to revive or resuscitate the patient in certain situations.