Tennessee Appoint Guardian Ad Item — medical only is a legal procedure in which a guardian is appointed to represent a minor or incapacitated adult in medical decisions. The guardian is appointed by a court order and is responsible for making decisions related to the individual’s medical and mental health care. This type of guardianship is limited to medical decisions only and does not include making decisions about financial or other matters. There are two types of Tennessee Appoint Guardian Ad Item — medical only: full guardianship, which allows the guardian to make decisions regarding all medical treatments, and limited guardianship, which allows the guardian to make decisions related to specific treatments.