["Sociology of Health & Illness, Volume 43, Issue 2, Page 476-492, February 2021. ", "\nAbstract\nAlongside other Nordic countries, the Norwegian government has introduced Cancer Patient Pathways (CPPs) for faster diagnostic assessment and timely treatment to improve the quality of cancer care. A key aspect of CPPs is the introduction of time limits for each phase of the diagnostic investigation. Occurring simultaneously are ongoing advances in medical technology, complicating the process of diagnosing and treating cancer. In this article, using institutional ethnography, we examine: how does the CPP policy influence physicians' experiences of diagnostic work? Data were collected from May 2018 to May 2019, through semi‐structured interviews with physicians across five hospitals in Norway (N = 27). Our findings indicate that the implementation of various strategies aimed at enhancing quality in cancer care collide, compelling physicians to negotiate between diagnostic precision and rapid decision‐making. We conclude that attention to interfaces between multiple guidelines and their implications for practice is crucial for understanding and developing quality of care.\n"]