The 2007 N.C. General Assembly took steps to further secure patients' rights to make end-of-life care choices by enacting House Bill 634, which significantly overhauls the state's advance directives laws.The changes are designed to clarify certain areas of confusion that existed in prior law and to provide additional choices for N.C. citizens.The changes affect existing state laws governing living wills (N.C.G.S. §§ 90-320 et seq.), health care powers of attorney (N.C.G.S. §§ 32A-15 et seq.), and the so-called "statutory living will" laws which govern the withholding of life-prolonging care in the absence of a living will (N.C.G.S. § 90-322).