Trauma facilities are designated as Level I, II, III, or IV. The role of the Level IV trauma center is to provide resuscitation and stabilization for severely injured adult or pediatric patients before transferring them to a higher level trauma system hospital.

Every trauma patient who arrives in the West Valley Hospital emergency department is met by trauma-trained nurses who are immediately available to initiate lifesaving care. West Valley Hospital's Level IV accreditation has remained consistent since 2013, with its most recent redesignation in June 2024.