Abstract: Objective: To investigate the current status of knowledge, attitude and practice of operating room nurses on terminal disinfection of infected operation and analyze the influencing factors. Methods: The study was conducted on 122 operating room nurses who attended the operating room specialist nurses training class of the Chinese Nursing Association in Beijing in July 2018. A self-developed questionnaire was used to investigate the cognition and influencing factors of terminal disinfection of infected operation. Results: The scores of terminal disinfection knowledge of infection operation in operating room nurses was (0.56±0.17), among which the score of disinfectant effect and application concentration was the highest (0.81±0.25), and the score of cleaning disinfection was the lowest (0.36±0.14). The mean score of attitude and behavior were (4.19±0.92) and (4.17±0.78), 84.43% of the nurses thought terminal disinfection was very important to prevent cross infection; 83.61% would like to participate in the training on terminal disinfection of infected operation. The influencing factors of operating room nurses' knowledge of terminal disinfection of infected operation were: working years, number of knowledge training; the influencing factor of attitude is the number of knowledge training; the influencing factor of behavior is the degree of attention paid by leaders. Conclusion: The knowledge score of terminal disinfection of infected operation in the operating room nurses is at medium level. The operating room nurses have positive attitude, while the level of practical ability is low. Head nurses should give knowledge training and strengthen the training frequency according to different characteristics of the nurses, as well as strengthen management to develop the responsibilities and advantages of the operating room nurses.

Key words: infected operation; the questionnaire survey; terminal disinfection; knowledge, attitude and practice