Healthcare environments are known to be intense in knowledge and constant stress. Exchanging information through social interactions in the work environment was addressed in this study of an emergency department in order to answer the following research question: “Regarding knowledge management, what are the relationships between resilient performance and burnout?”. To do so, we used the resilience social network questionnaire and the Maslach Burnout Inventory. Results showed that resilience is positively correlated to burnout. Nurses are the most resilient actors. In addition, professional experience and participating in huddles relate to a greater contribution to the organisation's resilience performance. Therefore, the constant use of resilient capacity takes a toll on health care professionals. Knowledge sharing also promotes informal leadership, providing more skilled professionals and highly qualified human capital.