Classification of protected categories is as follows: A "disabled veteran" is one of the following: a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or a person who was discharged or released from active duty because of a service-connected disability. Responsibilities include providing patient care by determining animal requirements, conducting examinations and diagnostic procedures, assisting during surgery and operations, providing nursing care, assisting with feeding and caring for patients, maintaining medical supplies and equipment, overseeing triage and discharging patients, and maintaining patient medical records.