Problem & Purpose: In a 22-bed Cardiac Surgery Intensive Care Unit (CSICU) at a large academic medical center, chart audits revealed that 80% of patients who require enteral nutrition (EN) are underfed. Underfeeding leads to increased risk of infection, delayed wound healing, delays in weaning from mechanical ventilation, increased length of stay (LOS), and an increased cost of care. The purpose of this quality improvement project (QI) was to implement volume based enteral nutrition (VBEN) to improve EN delivery to adult critically ill patients in the CSICU. Methods: A needs assessment was conducted in the CSICU prior to this project. Subsequently, a multi-disciplinary team was created. The QI project was implemented Fall of 2024 over 15 weeks. Eligible patients were prescribed VBEN by the registered dietitian. VBEN transitions to a 24-hour volume goal of EN, which allowed the nurse to adjust the hourly rate of the EN to meet a 24-hour volume goal. Weekly data collection took place via chart audits and feedback. Results: A total of 137 patients received EN during the implementation period with 86 patients that met eligibility criteria for VBEN, and 67.4% (n=58) prescribed VBEN. In total, 40 patients received VBEN greater than seven days, and 70% (n=28) met their 24-hour volume goal. Electronic health record (EHR) compliance was 55.5% (n=76). However, only 27.6% (n=16) of patients required EN titrations. Conclusion: Findings suggest that compliance with VBEN prescription was under the goal at 67%, with a benchmark of 100%. In terms of delivery, 70% of patients on VBEN greater than seven days met their 24-hour volume goal, surpassing the benchmark of 60%. Data suggested patients with active VBEN orders met their nutritional goals. EHR compliance documentation fell below the goal of 100% documentation. Only 27.6% of patients required VBEN titrations, suggesting VBEN did not benefit EN delivery in the CSICU.