IntroductionMedical and medication errors and adverse events are well-known problems in the healthcare sector regardless of country. Errors are either the correct implementation of a wrong procedure or the incorrect implementation of the right procedure (IOM, 1999 pp23-25). Adverse events are considered unintentional injury and/or damage to the patient, but not necessarily due to human error. This proposal will present a technical solution, using case-based reasoning, to help prevent errors from occurring, thereby reducing unwanted events, and to make suggestions to operational staff on what to do when a such event or error occurs. One of many national initiatives aimed at reducing the occurrence of unnecessary medical errors and adverse events is the use of the integrated clinical decision support system (CDSS). A CDSS is a system that delivers the right information to the right person in the right format through the right channel and at the right time in the workflow to facilitate better decision-making by clinicians, reduce errors and also prevent adverse events (AHRQ, 2008). ). This proposal is a case-based CDSS system that provides clinical decision support at the point of care, ensures five drug administration rights (right person, right drug, right dose, right time, and right route), and is designed to prevent or reduce appearance errors. and adverse events at Perpetual Order of Saints Hospital (POSH). The case-based reasoning system proposed here mimics the human decision-making process by learning from previous experience and using the knowledge to solve the current problem. This system will use previous adverse episodes and their solutions to prevent recurrences, and also to detect the oc...... middle of paper ......3) Ten commandments for effective clinical decision support: making evidence-based medicine practice a reality. Journal of American Medical Informatics Association 10(6): 523-530. Friedman, LN, Halpern, NA, & ​​Fackler, JC (2007). Setting up an electronic medical record. Intensive Care Clinics 23: 347-381. Gong, Y. (2010). Case-based medical reasoning. HMI 8571 Decision support systems in the health field. February 22, 2010. Accessed 02/22/10 https://hmi.missouri.edu/moodle/mod/resource/view.php?id=11201Hauan, MJ (2004). Decision support methods. HMI 471. Retrieved 02/15/10. https://hmi.missouri.edu/moodle/mod/resource/view.php?id=11201 Kohn, L., Corrigan, J., & Donaldson, M. (1999). To err is human: building a safer health system. Committee on Quality Health Care in America Institute of Medicine National Academy Press Washington, DC.