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Erythropoietin-stimulating agents (ESA) have revolutionized the management of anemia. However, these agents are not always utilized with proper monitoring parameters, which can present significant safety concerns, unwarranted drug expenditures, and decreased ESA efficacy. This retrospective study assessed the utilization of all ESAs in non-intensive care unit hospitalized patients at a large academic medical center from August 18, 2018, to August 31, 2018, using established guideline-based assessment criteria. Among the 167 doses of ESA evaluated, 86% (n ¼ 144) were utilized in accordance with guideline-based assessment criteria regarding laboratory monitoring of iron studies. However, 24% (n ¼ 40) of ESA doses were administered to patients with active, untreated iron deficiency at the time of administration. Although most ESA doses were utilized in accordance with the guideline-based criteria, interventions can be implemented to further improve anemia treatment. Implementing a protocol-driven anemia management service is one strategy that can improve patient care, advance patient safety, and be cost-beneficial.