Article reports the experience of the use of a preventive guideline for the prevention of accidental extubation that occurs associated nursing care for the four moments of bigger incidence that are: bath in the stream bed, transportation, exchange of setting and change of decubitus. The content of the guide is based in the recommendations found in bibliographical survey in the MedLine and in the professional experience. The guideline is being used since September, 2005. This contribution aims at decreasing extubation incidence and to be a tool to develop a quality indicator in Intensive Care Units as well as for offering an assistance that aims patient safety.