Objective To analyze risk cause on adverse apparatus events of medical institution for causing the attention of medical institutions and reducing or exempting the occurrences. Methods Through the analysis risk cause on adverse apparatus events of medical institutions, the major factors of causing the medical institutions adverse apparatus events and the ways of solving the problems were found. Results The ways and countermeasure of solving medical institutions adverse apparatus events are brought forward. Conclusion It is preventable in adverse apparatus events of medical institutions.

OBJECTIVE: To prepare the disinfectant for venepuncture in children and to establish the quality control for this preparation. METHODS: Nicotinic acid and racanisodamine were taken as the chief components for the preparation of this disinfectant, 75% alcohol as the solvent. Nicotinic acid were determined by ultraviolet and visible spectrophotometry(UV-Vis); racanisodamine were determined by nonaqueous titrations. RESULTS: The average recoveries of racanisodamine and nicotinic acid were 99.96%(RSD=0.04%) and 100.04%(RSD=0.16%) respectively, which all were in the range of 98.87%～100.8%. CONCLUSION: The disinfectant produced with the established method is simple in preparation, accurate in content determination, stable and reliable in quality.