As per State Law (62-5-504), the medical power of attorney form for South Carolina allows you to choose a surrogate to handle your health care facility and treatment options in the chance you cannot make them yourself. The most common selection for the surrogate is your spouse, relative, or close friend. As the person selected is not paid other than expenses reimbursed for lodging and travel, you will want to select someone who will assist you in your needs for personal reasons. In order for the document to become in effect, the form must be notarized and signed with at least two (2) witnesses.
If you would like to make end of life decisions without the use of an agent, you can do so by authorizing a living will.