Introduction: First aid, most frequently given by the laic population, is very important. Laymen are often the first on the scene, the first to help and call emergency number 112. By doing so, they contribute to providing faster care, which increases the chances of survival. Massive haemorrhage and shock are two of the complications of penetrating chest traumas. In order to prevent them, it is important to act accordingly on the scene, increasing the success of future treatment. Purpose: We wish to present the penetrating chest trauma, the symptoms and signs on the scene, proper steps of caring for injuries, the position of the injured person and the steps required in case of shock. Work methods: The descriptive method was used to review domestic and foreign scientific and professional literature. Electronic sources were obtained from specialized databases, PubMed, ScienceDirect, Medline, Wiley Online Library, Cinahl, Cochrane Library and DiKUL portal. Results: By reviewing the literature we did not determine whether or not the laymen are familiar with first aid procedures in cases of penetrating chest trauma; we did however obtain a comprehensive overview of chest injuries and the way to give first aid in case of accident. Discussion and conclusion: The first aid that the injured person receives on the scene is crucial for ensuring increased chances of survival. The research carried out twenty-four years ago in USA showed that penetrating injuries are the main cause of death of young population in larger areas. The first person on the scene is often not sure of themselves and doubts their knowledge, so they often think they will do more harm than good. It is important for a layperson to first ensure their own safety on the scene, to stop the bleeding, to place the injured person in a proper position and to call 112. From here on they will get accurate instructions by dispatcher and information on how to proceed to ensure subsequent care of the injured person. In many cases, however, it is the layperson that we should be grateful to for taking care of us and for making sure we get proper emergency assistance at the right time and at the right place.
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