Quispel-Aggenbach DWP, et al. - Researchers performed a literature search in PubMed, PsycINFO and Embase to review attention, arousal and other rapid bedside screening instruments for delirium in older patients. Twenty seven studies among 4,766 patients in hospitals and nursing homes were identified. In these patients, 2 arousal tests—Observational Scale of Level of Arousal (OSLA) and Richmond Agitation and Sedation Scale (RASS)—had reproduced high sensitivity and specificity. During daily interaction with patients, nurses can administer these tests.