The NSW Agency for Clinical Innovation has a resources page with screening and assessment tools to help identify cognitive impairment, dementia, and delirium in older people.
The 4 A’s test appears to be helpful in diagnosing people with suspected delirium in time-pressured environments, as it is shorter than the existing full screening tools. You can read more about the NIHR – funded study that looked at the use of the 4A’s test in practice, and its diagnostic accuracy here.
Hospital Elder Life Program (HELP), developed by the Yale University School of Medicine, provides access to the Confusion Assessment Method (CAM), as well as other tools and training manuals.