revised
10/31/2014

Areas of ESI algorithm

Appendix B. ESI Triage Algorithm, v. 4

Flow chart demonstrating the algorithm. Box A is labeled 'requires immediate life-saving intervention?' 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 'high risk situation? or confused/lethargic/disoriented? or severe pain/distress?' 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 different resources are needed?' 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 'danger zone vitals?' with the following vital sign formulae: HR/RR/SaO2<92%: <3 m/>180/>50; 3 m-3y/>160/>40; 3-8 y/>140/>30; >8y/>100/>20'. An arrow labeled 'Consider' points from Box D to a 2 in a circle and an arrow labeled 'No' points to a 3 in a circle.

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

Flow chart demonstrating the algorithm. Box A is labeled 'requires immediate life-saving intervention?' 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 'high risk situation? or confused/lethargic/disoriented? or severe pain/distress?' 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 different resources are needed?' 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 'danger zone vitals?' with the following vital sign formulae: HR/RR/SaO2<92%: <3 m/>180/>50; 3 m-3y/>160/>40; 3-8 y/>140/>30; >8y/>100/>20'. An arrow labeled 'Consider' points from Box D to a 2 in a circle and an arrow labeled 'No' points to a 3 in a circle.

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

The ESI version 4 algorithm is copyrighted and is the intellectual property of the ESI Triage Research Team, LLC. The algorithm may not be changed in any way by any user. The algorithm and the contents of the DVD set and implementation handbook may be incorporated into additional training materials developed by a user, on the condition that no fee is charged by the user for the Algorithm, the contents of the ESI Handbook, or the additional training materials in the DVDs.

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