BackgroundResearch continue to report a high prevalence of low quality and missed care for patients with community aquired pneumonia (CAP). Optimised nursing treatment and care will benefit CAP patients and health economy. Hence, there is a need to describe barriers and facilitators at individual, team, and organisational levels influencing registered nurses’ adherence to evidence-based guideline recommendations for nursing care for older patients admitted with community-acquired pneumonia. MethodsTwo semi-structured focus-group interviews (n=6 registered nurses in each group), field observations (n=14), and individual follow-up interviews (n=10) were conducted in three Danish medical units. Data were analysed using qualitative manifest and latent content analysis. ResultsThe data revealed a main theme: ‘Stolen time’- delivering nursing at the bottom of a hierarchy and three themes: 1) ‘Under the dominance of stronger paradigms’, 2) ‘The loss of professional identity’, and 3) ‘The power of leadership. The themes, each comprising two to three sub-themes, illustrated that registered nurses’ adherence to evidence-based guideline recommendations, was strongly influenced by the individual registered nurses’ professionalism and professional identity, contextual barriers including the interdisciplinary team, organisational structure, culture and valuation of nursing care, and the nurse manager’s leadership skills. ConclusionsTime is stolen from hospital nurses worldwide, leading to haphazard and missed care. This study identified central factors that may help registered nurses understand the underlying dynamics and make them better equipped for changing practice to improve patient outcomes. Barriers for evidence-based nursing practice were found at the individual, team, and organisational levels. Implementation strategies for evidence-based nursing should, therefore, target barriers at all three levels and emphasise facilitating leadership.