The majority of hospitals in the United States use the ESI triage tool.  This tool Acad Emerg Med. 2010 Mar;17(3):238-43. doi: 10.1111/j.1553-2712.2010.00670.x.Accuracy of the Emergency Severity Index triage instrument for identifying elder emergency department patients receiving an immediate life-saving intervention. Platts-Mills TF1, Travers D, Biese K, McCall B, Kizer S, LaMantia M, Busby-Whitehead J, Cairns… Read More