744.3115  Advance directives for health care.--In each proceeding in which a guardian is appointed under this chapter, the court shall determine whether the ward, prior to incapacity, has executed any valid advance directive pursuant to chapter 765. If any such advance directive exists, the court shall specify in its order and letters of guardianship what authority, if any, the guardian shall exercise over the surrogate. Pursuant to the grounds listed in s. 765.105, the court, upon its own motion, may, with notice to the surrogate and any other appropriate parties, modify or revoke the authority of the surrogate to make health care decisions for the ward.