APN: Practices professional nursing by the performance of both independent nursing and delegated medical functions in accordance with accepted practice standards. Utilizes specialized knowledge, judgment, and skills involving the application of biological, physical, social, and behavioral science principles. Functions include patient advocacy and the initiation and performance of nursing care and advanced clinical skills to evaluate, diagnose, and treat human disease, pain, injury, physical or mental conditions, health maintenance and promotion, supportive and restorative care. PA: Practices medicine as delegated by and under the supervision of a physician in accordance with accepted practice standards. Utilizes specialized knowledge, judgment, and skills involving the application of biological, physical, social, and behavioral science principles. Functions include patient advocacy and the initiation and performance of medical care to evaluate, diagnose, and treat human disease, pain, injury, physical or mental conditions, health maintenance and promotion, supportive and restorative care.