Emergency Severity Index (ESI) Calculator
Calculate the Emergency Severity Index (ESI) for patient triage based on acuity, resource needs, and vital signs. Determine appropriate ESI levels (1-5) for emergency department patients.
Step 1: Patient Acuity Assessment
Understanding ESI Levels
The Emergency Severity Index is a 5-level triage system that categorizes patients based on acuity and resource needs. ESI level 1 is the most urgent (immediate life-saving intervention required), while ESI level 5 is the least urgent.
Step 2: Resource Needs & Vital Signs
ESI Resource Examples
Resources include: Lab tests, ECG, X-rays, CT/MRI, IV fluids, IV/IM medications, specialty consultation, complex procedures. Simple interventions like wound care or oral medications are not counted as resources.
ESI Triage Results
Emergency Severity Index
ESI Level Comparison
| ESI Level | Description | Resources Needed | Typical Wait Time | % of ED Patients |
|---|
ESI Decision Algorithm
ESI Triage Protocol
ESI Level Determination
ESI is determined by assessing: 1) Need for immediate life-saving intervention, 2) High-risk situation or altered mental status, 3) Number of resources needed, and 4) Vital signs. The algorithm ensures appropriate prioritization of emergency department patients.
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