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Emergency Severity Index, Version 4: Implementation Handbook

Figure 2-1. Emergency Severity Index Conceptual Algorithm, v. 4

Flow chart demonstrating the algorithm. Box A is labeled 'patient dying?' with an arrow labeled 'Yes' pointing to a 1 in a circle and an arrow labeled 'No' pointing to Box B. Box B is labeled 'shouldn't wait?' with an arrow labeled 'Yes' pointing to a 2 in a circle and an arrow labeled 'No' pointing to Box C. Box C is labeled 'how many resources?' with an arrow labeled 'none' pointing to a 5 in a circle, an arrow labeled 'one' pointing to a 4 in a circle, and an arrow labeled 'many' pointing to Box D. Box D is labeled 'vital signs' with an arrow labeled 'Consider' pointing to a 2 in a circle and an arrow labeled 'No' pointing to a 3 in a circle.

©ESI Triage Research Team, 2004. Reproduced with permission.

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