This report details a literature search protocol for evidence-based practice (EBP), specifically addressing the impact of family caregivers' health literacy on the functional health status of elderly individuals. The report begins with a justification of EBP's importance in clinical decision-making, emphasizing its role in delivering effective care and improving patient outcomes. It then outlines the PICO (Population, Intervention, Comparison, Outcome) framework used to formulate the research question and guide the search strategy. The search strategy protocol, including the databases used (PubMed, CINAHL, MEDLINE, EMBASE), search terms, and inclusion/exclusion criteria, is thoroughly described. The results of the search, including the number of articles found at each stage of the filtering process, are presented in a clear and concise manner. Finally, the report includes a list of relevant references and an appendix with the 10 articles found to meet the inclusion criteria. The report demonstrates a structured approach to literature searching, emphasizing the importance of rigorous methodology in the application of EBP to inform clinical practice and improve patient outcomes, particularly concerning the health literacy of caregivers and the well-being of the elderly.