Objective: We report preventive measures of missing drug administration in hospital setting, based on factor analysis.
Methods: The double-check system was introduced to prevent from missing drug administration. In order to evaluate the effectiveness of the preventive measures, the type of errors was classified into seven patterns as follows; 1: Instructions and/or prescriptions were forgotten/ inappropriate instruction were given, 2: Lack of recognition of instructions, 3:Misunderstanding of instructions, 4: Forgot to prepare medications , 5: Forgot to hand medicine to patients , 6: Forgot to confirm drug administration, 7: Others . The number of cases for each pattern was analyzed calculated, and the effects of preventive measures were compared before and after implementation of preventive measures. We extracted the factors behind each factor that led to missing drug administration even after the measures were taken, and examined the preventive measures.
Results: The number of cases of missing administration of medication was 193 in 2014 (before the implementation of preventive measures,) and 83 in 2018 ( after the implementation of preventive measures) with decrement by 57%. Factor 1 remained unchanged, Factors 2, 3, 4, and 5 were decreased by 74%, 75%, 46%, and 48%, respectively, while Factor 6 was increased. Factor 2 was most seemed to reflect in the effect effectiveness of the measures, and with decrement from 92 cases to 24 cases, and the ratio to the total non-medication decreased from 48% to 29%, showing a significant difference (P ‹0.01). Factor 6 was increased even after the measures were taken, which might be related to mixture of patient and medical staff factors.
Conclusions: Analysis of missing drug administration has clarified both effectiveness and problems of preventive measures by double-check function.
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