Basic life support can be carried out by laymen. The procedures of advanced life support can and should only be performed by medical workers. CPR falls under the fundamental procedures of basic life support. Apart from the above mentioned, advanced lifesupport procedures also contain defibrillation, recognition and treatment of reversible causes, provision of a safe breathing pathway, and vascular access. An important factor which influences the success and quality of reanimation is nontechnical skill, ie. the human factor. Non-technical skills are cognitive, social and personal skills. They complement the technical skills and thus affect the safe and effective performance of tasks and personal performance. The aim of this research is to examine the knowledge of basic and advanced life support, to determine the difference between the knowledge of the students of the first and the sixth year of medicine, the influence of the acquired knowledge on attitudes concerning practical application of this knowledge and attitudes on non-technical characteristics as a result on the quality of reanimation. This research has confirmed that the sixth-year students possess more knowledge regarding reanimation than the first year students. Students of the first and sixth year have equally positive attitudes on how non-technical skills affect the quality of resuscitation.