An “Advance directive” is a general term that refers to your oral and written instructions about your future medical care, in the event that you become unable to speak for yourself. Each state regulates the use of advance directives differently. There are two types of advance directives: a living will and a medical power of attorney. These forms express your wishes regarding donation of organs and the designation of your primary physician. You may complete or modify all or any part of it and are free to use a different form.