The Observational Scale of Level of Arousal: A brief tool for assessing and monitoring level of arousal in patients with delirium outside the ICU.

This study provides preliminary evidence supporting use of the OSLA as an instrument for identifying abnormal level of arousal associated with delirium and monitoring this longitudinally. Further validation in larger cohorts with blinded raters is required. J Am Geriatr Soc 68:-, 2020.