Final answer:
An NVA Hospital, managed by the National Veterans Administration, was integrated in the 1950s, and provided federal support for civil rights unlike the VCA Hospital, which is not clearly defined. VADs were British nurses with less formal training, tasked with basic and unpleasant duties in military hospitals.
Step-by-step explanation:
The NVA Hospital refers to the hospitals overseen by the National Veterans Administration, which, following integration in the 1950s, would have benefited from federal support for civil rights, including the integration of services for all regardless of race. This contrasts with the VCA Hospital, which does not have a clear reference in the question but could be mistakenly referred to Veterans Administration (VA) or Veterinary Centers of America.
The Voluntary Aid Detachments (VADs) established in Britain would not have had the same level of formal training as military nurses and typically performed more menial tasks within military hospitals that were at times structured with rigid hierarchies and protocols.