Figure 2.

Process flowchart for emergency department (ED) patients—post-intervention conditions. Decision points are depicted as diamonds; percentages indicate the percentage of patients assigned to each pathway, based on staff discretion or Emergency Severity Index (ESI) (in the real ED) or random assignment (in the discrete event simulation model). MD, attending physician; MLP, mid-level provider (nurse practitioner); RN, nursing staff assigned to the triage area.