OSLA — Observational Scale of Level of Arousal

2013

Brief observational measure of level of arousal; abnormal arousal is a strong, quickly assessed indicator of delirium.

Ultra-brief bedside screenSingle validation study

87%

Sensitivity*

81%

Specificity*

Full nameObservational Scale of Level of Arousal

Also known asOSLA

PurposeUltra-brief bedside screen

PopulationAdult

SettingPerioperative, General / acute hospital

Items4

Administration<1 min

EvidenceSingle validation study

Reference typeOriginal validation study

ReferenceTieges Z, McGrath A, Hall RJ, MacLullich AMJ. Abnormal level of arousal as a predictor of delirium and inattention: an exploratory study. Am J Geriatr Psychiatry. 2013;21(12):1244-53. PMID 24080383

Download RIS Download BibTeX DOI ↗ Original validation study ↗

* Where shown, sensitivity/specificity are from the cited validation cohort and are not pooled estimates. Citation metadata was checked against PubMed or the publisher DOI record; a checked reference does not imply validation, study quality or endorsement. See the Methodology.