Living wills and advance directives for medical decisions

Living wills and other advance directives describe your preferences regarding end-of-life care. Because unexpected situations can happen at any age, all adults need advance directives. By Mayo Clinic Staff

Living wills and other advance directives describe your preferences regarding treatment if you're faced with a serious accident or illness. These legal documents speak for you when you're not able to speak for yourself — for instance, if you're in a coma.

Living wills and other advance directives aren't just for older adults. Unexpected end-of-life situations can happen at any age, so it's important for all adults to have advance directives.

Advance directives: More than just living wills

Advance directives are written instructions regarding your medical care preferences. Your family and doctors will consult your advance directives if you're unable to make your own health care decisions. Having written instructions can help reduce confusion or disagreement.

Advance directives include:

  • Living will. This written, legal document spells out the types of medical treatments and life-sustaining measures you want and don't want, such as mechanical breathing (respiration and ventilation), tube feeding or resuscitation. In some states, living wills may be called health care declarations or health care directives.
  • Medical or health care power of attorney (POA). The medical POA is a legal document that designates an individual — referred to as your health care agent or proxy — to make medical decisions for you in the event that you're unable to do so. However, it is different from a power of attorney authorizing someone to make financial transactions for you.
  • Do not resuscitate (DNR) order. This is a request to not have cardiopulmonary resuscitation (CPR) if your heart stops or if you stop breathing. Advance directives do not have to include a DNR order, and you don't have to have an advance directive to have a DNR order. Your doctor can put a DNR order in your medical chart.

Do you need a living will and a medical POA?

A living will can't cover every possible situation. Therefore, you might also want a medical POA to designate someone to be your health care agent. This person will be guided by your living will but has the authority to interpret your wishes in situations that aren't described in your living will. A medical POA also might be a good idea if your family is opposed to some of your wishes or is divided about them.

Choosing a health care agent

Choosing a person to act as your health care agent is possibly the most important part of your planning. You need to trust that this person has your interests at heart, understands your wishes and will act accordingly. He or she should also be mature and levelheaded, and comfortable with candid conversations. Don't pick someone out of feelings of guilt or obligation.

Your health care agent doesn't necessarily have to be a family member. You may want your health care decision maker to be different from the person you choose to handle your financial matters. It may be helpful, but it's not necessary, if the person lives in the same city or state as you do.

What treatments would you want?

In determining your wishes, think about your values, such as the importance to you of being independent and self-sufficient, and what you feel would make your life not worth living. Would you want treatment to extend life in any situation? Would you want treatment only if a cure is possible? Would you want palliative care to ease pain and discomfort if you were terminally ill?

Although you can't predict what medical situations will arise, be sure to discuss the following treatments. It may help to talk with your doctor about these, especially if you have questions.

  • Resuscitation. Restarts the heart when it has stopped beating (cardiac death). Determine if and when you would want to be resuscitated by cardiopulmonary resuscitation (CPR) or by a device that delivers an electric shock to stimulate the heart.
  • Mechanical ventilation. Takes over your breathing if you're unable to do so. Consider if, when and for how long you would want to be placed on a mechanical ventilator.
  • Nutritional and hydration assistance. Supplies the body with nutrients and fluids intravenously or via a tube in the stomach. Decide if, when and for how long you would want to be fed in this manner.
  • Dialysis. Removes waste from your blood and manages fluid levels if your kidneys no longer function. Determine if, when and for how long you would want to receive this treatment.
Jul. 09, 2011 See more In-depth