ORIGINAL

The work of Mobile Emergency Medical Service (SAMU) involves the participation of several professionals that meet the demands of different levels of complexity in a huge geographic territory, with planning different of services with exclusively fixed structures. The aim of this study was to analyze the configuration of practices of power in the daily work of professionals of the SAMU. It was a qualitative case study which had been set in the SAMU of Belo Horizonte, Minas Gerais, Brazil. The sample was composed by 31 workers and data were collected using semi-structured interview and than submitted to discourse analysis. In the context of struggles and power relations in SAMU, stands out ‘the power of zero vacancy ’ and the ‘uniform bodies and images of power in the SAMU’. It was possible to observe that power in SAMU is present as social practice, with its centrality moving according to lived situations and to interests in question. Descriptors: Emergency medical services. Rescue personnel. Professional practice. Interprofessional relations. RESUMO O trabalho do Serviço de Atendimento Médico de Urgência (SAMU) envolve a participação de diversos profissionais que atendem a demandas de diferentes níveis de complexidade, em um amplo território geográfico, com um planejamento de trabalho diferente dos serviços com estruturas exclusivamente fixas. O objetivo deste estudo foi analisar a configuração de práticas de poder no cotidian