Applying Behaviour Change Theory to Develop an Implementation Strategy for Nurse-Initiated Protocols in the Emergency Department.

backgroundEmergency Departments face increasing pressure due to rising patient demand, complex presentations, and resource constraints, resulting in long waits and extended stays. Nurse-initiated protocols enable nurses to commence investigations and treatments based on clinical guidelines, improving care and efficiency. Despite evidence supporting their effectiveness, few nurse-initiated protocol implementation strategies are grounded in behaviour change theory. This gap may contribute to limited uptake, as many initiatives fail to address the complex factors influencing clinician behaviour.

aimTo develop a behaviour change theory-informed implementation strategy to enhance the uptake of nurse-initiated protocols in the emergency department.

designA framework-based intervention design was used.

methodsThe Behaviour Change Wheel and Theoretical Domains Framework guided the development of the implementation strategy. Barriers and enablers identified through prior research in 2023 using surveys and focus groups were mapped to relevant intervention functions. Behaviour change techniques were selected based on their potential to address barriers or strengthen enablers. The APEASE criteria (Affordability, Practicability, Effectiveness, Acceptability, Side effects, and Equity) were applied to optimise feasibility.

resultsNine barriers and ten enablers to nurse-initiated protocols use were identified and categorised using the COM-B (Capability, Opportunity and Motivation) framework and mapped to the Theoretical Domains Framework. Eight intervention functions were selected and mapped to 24 behaviour change techniques and 23 delivery modes. The key implementation strategies are education, clinical champions, documentation changes, audit and feedback, and leadership engagement. Stakeholders confirmed the feasibility of the selected strategies.

conclusionTheory-informed, context-specific strategies are essential for implementing nurse-initiated protocols in emergency departments. This approach enables the design of targeted, feasible interventions that directly respond to identified barriers and enablers. Future research should test context-specific implementation strategies, assess their long-term impact on healthcare outcomes, and evaluate their scalability across diverse healthcare settings. IMPACT: By targeting the behavioural determinants of clinician practice, this study fills a critical gap in implementation science within emergency nursing. This study identified 24 behaviour change techniques across eight intervention functions to support nurse-initiated protocol uptake. Strategies such as education, clinical champions, and audit provide a practical, replicable framework to overcome barriers, enhance autonomy, and reduce care delays. Findings support sustainable implementation in emergency settings, with future research needed on long-term impact and scalability. REPORTING

methodThere is no EQUATOR guideline available for this study. PATIENT OR PUBLIC CONTRIBUTION: This study did not include patient or public involvement in its design, conduct, or reporting.