RESUMEN

Objective To find the approximate error factors influence of dosing, fundamentally reduce the administra-tion of approximate error. Methods According to the three level of hospital administration approximation error of 181 cases were retrospectively analyzed. Results The following factors were caused drug similar mistakes.Administration of the approximation error incidence decreased year by year during the investigation. Medication errors and errors in the approximation, error dose administered in the proportion accounted for more than 60%. More than 90% administration of the approximation error occurs during the day. The title, length of service and equipment have important effects on reducing drug approximation error, do not comply with the work flow, violating the operating rules, because of inter-ference interrupts the continuity, the lack of communication, carelessness, memory errors, drug similarity, difference signal information system. Conclusion Specification for dug management system, the administration management as a whole,the full implementation of the"Five Rights"management.