“…Recent research [ 9 , 10 , 11 , 12 , 13 ] highlighted the Lean philosophy as a strategy allowing companies in any sector to adapt to rapid changes in the market, in the economy, in technical and social complexity issues, and in the needs of customers as well as for the health sector to adapt to the demands discussed above. A bibliographic review found great diversity, for example, in the area of emergency care, one of the most complex and haphazard areas [ 12 , 13 , 14 , 15 , 16 ] where this philosophy was applied for process improvement with successful results. Other researchers, such as Guzmán [ 6 ], also showed how, in the last 10 years, general hospital departments published results of process improvement and time optimization in emergency medicine, surgery, pharmacy, nursing, oncology, and administration reflecting the success of having implemented the Lean philosophy.…”