231 Pa. Code § 2051
As used in this chapter
"action" means any civil action or proceeding brought in or appealed to any court of record which is subject to these rules;
"guardian," except where the context otherwise indicates, means the guardian or other fiduciary appointed by a court of competent jurisdiction for the person or estate of an incapacitated person;
"incapacitated person" means an adult whose ability to receive and evaluate information effectively and communicate decisions in any way is impaired to such a significant extent that the person is partially or totally unable to manage financial resources or to meet the essential requirements for physical health and safety;
"confined" means legally committed or voluntarily or involuntarily restrained because of incapacity.
231 Pa. Code § 2051