Performing fieldwork in healthcare settings is significantly different from fieldwork in other domains and it presents unique challenges to researchers‎.‎ Whilst results are reported in research papers‎,‎ the details of how to actually perform these fieldwork studies are not‎.‎ This is the first of two volumes designed as a collective graduate guidebook for conducting fieldwork in healthcare‎.‎ This volume brings together the experiences of established researchers who do fieldwork in clinical and non‎-clinical settings‎,‎ focusing on how people interact with healthcare technology‎,‎ in the form of case studies‎.‎ These case studies are all personal‎,‎ reflective accounts of challenges faced and lessons learned‎,‎ which future researchers might also learn from‎.‎ We open with an account of studies in the Operating Room‎,‎ focusing on the role of the researcher‎,‎ and how participants engage and resist engaging with the research process‎.‎ Subsequent case studies address themes in a variety of hospital settings‎,‎ which highlight the variability that is experienced across‎.‎‎.‎‎.‎