4AT – 2 minute delirium detection validated in 30+ studies
Evidence-based bedside tool for rapid delirium screening across acute, community, and peri-operative settings.
~2 min administration time
No training required: designed for immediate use by nurses, doctors, and AHPs
Extensive evidence: 31 diagnostic‑accuracy studies (>6000 pts)
High sensitivity & specificity
Globally adopted: translated into >20 languages & included in national guidelines
Completely free: instant access, no registration required
Free EHR integration: ready for systems like EPIC with no licensing required
New study: validation of the 4AT for monitoring delirium recovery!
The 4AT is now validated for monitoring delirium recovery
✓ 94-96% sensitivity across repeated assessments
World's first formal study validating performance of a tool for tracking recovery from delirium
Published in Age & Ageing
