en پژوهشی اصيل Original Research <span style="font-size:10pt"><span style="unicode-bidi:embed"><span new="" roman="" style="font-family:" times=""><b><span cambria="" style="font-family:"><span style="color:black">Aims:</span></span></b>&nbsp;<span cambria="" style="font-family:"><span style="color:black">Identifying the knowledge and skills of emergency medical technicians in mass casualty incidents can minimize the risks associated with the response. This study was conducted with the aim of investigating the factors affecting the skill and efficiency of emergency medical service staff in mass casualty road traffic incidents.</span></span></span></span></span><br> <span style="font-size:10pt"><span style="unicode-bidi:embed"><span new="" roman="" style="font-family:" times=""><b><span cambria="" style="font-family:"><span style="color:black">Participants & Methods:</span></span></b><span cambria="" style="font-family:"><span style="color:black">&nbsp;The present research was conducted with a semi-structured qualitative method on 31 officials and personnel of pre-hospital emergency, Red Crescent and police forces who were selected by purposive sampling method from June 2018 to September 2019.</span></span> <span cambria="" style="font-family:"><span style="color:black">Data were analyzed by conventional content analysis method</span></span><span cambria="" style="font-family:"><span style="color:black"></span></span></span></span></span><br> <span style="font-size:10pt"><span style="unicode-bidi:embed"><span new="" roman="" style="font-family:" times=""><b><span cambria="" style="font-family:"><span style="color:black">Findings:</span></span></b><span cambria="" style="font-family:"><span style="color:black">&nbsp;Effective factors on skill and efficiency were identified in the two main categories of professional performance (with 2 subcategories of triage requirements and challenges and functional deficiencies) and employee competence (with 4 subcategories of necessity for psychological recovery, professional competence improvement, technician skill improvement, and commitment and professional ethics).</span></span></span></span></span><br> <span style="font-size:10pt"><span style="unicode-bidi:embed"><span new="" roman="" style="font-family:" times=""><b><span cambria="" style="font-family:"><span style="color:black">Conclusion:</span></span></b><span cambria="" style="font-family:"><span style="color:black">&nbsp;Inability in triage, functional deficiencies and lack of knowledge and skills related to trauma at the scene of the accident, cause disruption in the professional performance of emergency medical service staff. Unpredictable conditions put additional stress on relief workers on the scene.</span></span> <span cambria="" style="font-family:"><span style="color:black">Improving knowledge and skills, psychological recovery, compliance with moral values, and efforts to improve professional qualifications will improve competence and increase skills and efficiency at work. By training people in first aid, people-oriented management and using people&#39;s participation, people can be involved and their potential can be used to provide relief services. </span></span></span></span></span><br> &nbsp; Clinical Skill,Efficiency,Emergency Medical Services,Traffic Accidents,Mass Casualty Incidents, 97 104 http://jccs.yums.ac.ir/browse.php?a_code=A-10-59-4&slc_lang=en&sid=1 S.J. Sadat 10031947532846005702 10031947532846005702 No Department of Nursing, School of Nursing, Yasuj University of Medical Sciences, Yasuj, Iran M. Khodayarian 10031947532846005703 10031947532846005703 No “Social Determinants of Health Research Center” and “Department of Health Education and Promotion, School of Public Health”, Shahid Sadoughi University of Medical Sciences, Yazd, Iran M. Vafaeenasab rzvafaee@yahoo.com 10031947532846005704 10031947532846005704 Yes Yazd Accident Prevention and Crisis Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, lran