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Expert Systems Application example
In health and medicine, simple (non-complex) expert systems exist in both large and small health environments (Hospitals and general practitioners [GPs]). For example at a GPs desk, during a patient's visit, the GP could prescribe medication to the patient using his integrated patient manager system (like Zedmed Clinical). The system will check the medication prescribed to the patient and any other data on the patient and use these as inputs, the inputs are processed through the system's knowledge base and it'll processes the result. If the medication prescribed has any adverse effects on the patient it'll be flagged and the clinician will be alerted to this. The system could also supply a list of any alternative medication available for the patient to assist the clinician in creating a decision on a possible effective treatment plan

Expert Systems in Healthcare
The Medical record is an information system and common tool used widely in healthcare, the majority of the time it's seen as a dependency, it's required for other systems it perform their operations. Combining this information system with other core hospital systems provides us with an information-rich system, but it does have it's major drawbacks. The Electronic health record (EHR) is designed to replace the traditional medical and bring together a more versatile, expansive and robust expert system to provide greater quality care. Replacing the paper based medical record with an EHR is the first, massive, step in providing an integrated expert system across a hospital setting. The advantages of bringing about this system is to provide the possibilities to perform rapid searches through the medical record for either practice or audit purposes, these searches can be then pooled from a variety of patients and be used to study the epidemiology of a disease. The system, (EHR) can be structured so that it monitors itself and the patient, any outlying variables (e.g: sudden extreme tachycardia) can be monitored and reported immediately, it could in turn report that variable or any other statistic autonomously on a schedule, individually or aggregated.