PREFACE ) is a tool for use in emergency department (ED) triage. The ESI algorithm yields rapid, reproducible, and clinically relevant stratification of patients into five gro ps, from level 1 (most …

The Emergency Severity Index (ESI) is a five-level emergency department triage algorithm, initially developed in 1998 by emergency physicians Richard Wurez and David Eitel, along with emergency …

The Emergency Severity Index® is a well-established triage tool used in emergency departments to prioritize care based on a patient’s condition. ESI is validated through extensive research, becoming …

The Emergency Severity Index (ESI) is a standardized, five-level triage scale used by emergency departments (EDs) across the United States to quickly sort incoming patients. Developed in 1998, …

What is the Emergency Severity Index? The Emergency Severity Index (ESI) is a standardized tool for triaging patients. It utilizes an algorithm to group patients into five levels, with Level 1 being the most …

Oct 8, 2025 · This guide breaks down the triage process and ESI levels 1–5 with real patient examples and practical tips to help nurses sharpen their prioritization and assessment skills.

Jul 24, 2025 · Explore the Emergency Severity Index algorithm with practical insights to enhance patient triage and improve emergency department efficiency.

The Emergency Severity Index is a five-level triage algorithm used in emergency departments to categorize patients based on both their acuity (how quickly they need medical attention) and the …

ESI Level 2 percentages varied from as little as 2.6% to as high as 69% of each facility’s ED visit population. Examining an individual facility’s annualized triage distribution may serve as a swift …

Apr 23, 2017 · These materials were developed with cost in mind for one reason, the ESI Triage Research Team has a vision of widespread implementation of ESI, while retaining excellent reliability …