Abstract: Objective: To analyze the feasibility of the key information technique related to the safety of intravenous doses in pediatric patients to enhance safe administration of intravenous doses in children. Methods: The key information technique related to safe administration of intravenous drugs in children was developed. Convenience sampling was then used to include 30 nurses in a tertiary grade A hospital to offer 150 intravenous administration (dose extraction, dose calculation, dose setting) utilizing the new technique method and the traditional method, respectively to compare their accuracy. The usability of the new technique was evaluated by the Usefulness, Satisfaction, and Ease of Use Questionnaire (USE), and the cognitive load of nurses was evaluated by the National Aeronautics and Space Administration Task Load Index (NASA-TLX). Results: The accuracy of dose extraction, dose calculation and dose setting of the traditional method was 94.0%, 88.7%, 96.0%, respectively, while the accuracy of this new technique was 100.0% with the difference being statistically significant (P<0.05). The score of the USE questionnaire was (6.30±0.55) points in new technique method; Compared with the traditional method (45.39±15.42), the new technique method (31.94±7.87) scored lower on the NASA-TLX questionnaire (P<0.05). Conclusion: The application of the key information technique related to safe intravenous doses in pediatric patients can improve nurses’ competence in dealing with dosage calculation. Moreover, the system developed in this study show good usability and cause less cognitive load for nurses, which is conducive to the safety of intravenous administration in children.

Key words: pediatric; intravenous dosage; drug administration safety; information technique; image recognition; usability assessment; wise information technology of nursing