Abstract: Objective To explore the ffects of mutiple blocking model for safety gap in ICU delirium prevention. Methods Patients in the comprehensive ICU of a tertiary first-class hospital in Qingdao from January to October of 2019 were included in the study , and the quasi experimental design was adopted. Through retrospective analysis and interview, the gap factors contributing to ICU delirium were found. And gap blocking measures were formulated based on evidence-based nursing practice. The incidence of delirium before and after gap blocking, the psychological distress degree of family members and doctors and nurses' score of delirium prevention knowledge and humanistic care awareness were compared. Results The delirium incidence after gap blocking was 47.63% ， decreased by 15.31%. Delirium duration was(4.32 +0.67 )days , decreased by(0.85+0.08) days. The psychological distress score of the family members , delirium prevention knowledge and humanistic care awareness score of doctors and nurses were statistically significant(P<0.05). Conclusion The application of multiple blocking model for safety gap can reduce the incidence of delirium in ICU ,reduce the psychological distress degree of family members and improve the knowledge level and humanistie care awareness of medical staff.

Key words:

"> Safety Gap, Muliple Blocking, Delirium, Intensive Care Units