The provisions of this chapter are cumulative with existing law regarding a person's right to consent or refuse to consent to medical treatment and do not impair any existing rights or responsibilities that a health care provider, a person, including a minor or incapacitated person, or a person's family or surrogate may have in regard to the provision, withholding or withdrawal of life sustaining procedures under the common law or statutes of the state.
Utah Code § 75A-3-104