From medical research it has been recognized that physicians doing medical work in the pre-hospital area can make a difference for the acutely ill people, meaning higher survival (Høyer, Schønemann). In the light of this it has during the last years - in the biggest cities in Denmark - been implemented that anaesthesiologists, employed at level 1 hospitals, can sometimes be on duty outside the hospital; some shifts they work in hospital, other shifts they perform in the pre-hospital field. No matter where they work - if they are in or out of hospital - their tasks are the same - they support human life on the most basic, physical level - and they are mobile and carry out nomadic work (using the definitions of mobility and nomadicity, as described in Bogdan (2006). However spaces and places in which they work, the degree of mobility and nomadicity, they ‘practice', and the artefacts and technologies, they make use of, are most often of very diverse character.Below I describe the characteristics for the mobile and nomadic work for the two different work situations of an anaesthesiologist - in-hospital and pre-hospital - and in these descriptions I include description of which technologies are used and how they are used. The paper builds on use-driven research carried out through the last 3½ years within the context of the PalCom project (PalCom). As a part of the research we have carried out extensive fieldstudies within the emergency response area, have held interviews and have had a series of different workshops with the different responders. The work is described in more detail in (Kristensen, 2006 (1) Kristensen, 2006 (2), Kyng, 2006).