In the emergency department, length of stay (LOS) is a widely used measurement.  Emergency department length of stay (EDLOS) is defined as the time interval between a patient’s arrival to the ED to the time the patient physically leaves the ED. The defining attributes discovered that waiting in a crowded emergency department was just that, waiting.  Waiting was the most acknowledged attribute associated with EDLOS. (Andersson et al., 2020) If the patients didn’t have to wait, they wouldn’t be a problem/complaint and had no time targets.