Emergency Severity Index (ESI): A Triage Tool for ED Care

Author: 
Agency for Healthcare Research and Quality (AHRQ)

The Emergency Severity Index (ESI) Implementation Handbook 2012 Edition, Version 4 provides information for establishing ESI - a five-level emergency department (ED) triage algorithm that provides clinically relevant stratification of patients into five groups from least to most on the basis of acuity and resource needs.