The objective of this paper is to propose a systematic application of Lean Healthcare in the activity of fetching the next patient in the X-ray examination process. The methodology used is based on two pillars: the first, called a survey, aims to map the process in which the focus activity is inserted and, thus, obtain the associated waste, identifying the root cause of what will be treated. Then, the proposed Lean pillar will propose a tool to remedy the waste in question, applying the necessary actions within a schedule and, finally, collecting the results and comparing them with the initial measurement. As a result, there is an improvement in the hospital processes from the Lean perspective, specifically in the activity of fetching the next patient, in the X-Ray examination, reducing the non-added value identified in this activity, that is, in the waiting time of the patient. As conclusions, it was possible to obtain concrete information about the implementation of this proposed systematic application, so that it can be replicated in other wastes, generating a systematic proposal, filling a gap in the literature, which covers the lack of fully structured studies with practical results of Lean Healthcare systematics in the medical clinic wing of hospitals.