Emergency actions taken by emergency departments concern a much larger context than the generally understood concept of saving human health and life. The excessive number of patients that must be admitted, due to the crisis situation, at a given moment of the department's operation results in the undertaking of specific actions and procedures. The occurrence of mass events cannot be planned or predicted, but it is possible to prepare for them in some way. Elaboration of the algo. The importance of preparing for crisis situations is increasingly discussed both in practical activities and in academic discussions. The problem concerns the small number of practical implementations of security management plans in crisis situations. The aim of the article is to present strategic activities in the field of management in crisis situations, based on the example of activities in the emergency department of a clinical hospital. A comprehensive crisis management plan allows to ensure the efficient functioning of the unit during emergency events, i.e. during actions in the event of an excessive number of incoming patients. Research and implementation work on preparedness for crisis situations is a need in the health care system on a macro scale.