Nurse Managers’ Toxic Leadership: Its Relation to Nurses’ Internal and External Intentions to Whistleblowing

<b>Aim:</b> This study aimed to explore the relationship between toxic leadership by nurse managers and staff nurses' intentions to engage in whistleblowing practices, both within and outside their hospital. <b>Background:</b> Nurses are pivotal in providing high-quality care, but toxic nurse manager leadership in the workplace can lead to challenges in patient care and the workplace environment. In response, whistleblowing serves as a mechanism to mitigate these problems and foster accountability. <b>Methods:</b> This descriptive correlational study was conducted from October 2023 to March 2024 with 292 inpatient and critical care unit nurses from a university hospital who were selected through simple random sampling. They completed the 15-item Toxic Leadership Scale to assess their views of toxic leadership in five domains: self-promotion, abusive supervision, unpredictability, narcissism, and authoritarian leadership. Nurses' intention to report misconduct was assessed using the 8-item whistleblowing intention questionnaire, including both internal and external whistleblowing. Descriptive statistics summarised the data; relationships between variables were evaluated using Spearman's correlation. Linear regression analysis provided the predictors of whistleblowing intention, exploring how personal characteristics and toxic leadership can affect this intention. <b>Results:</b> The study revealed that nurses reported moderate levels of toxic leadership among their managers, with a total mean of 45.97 ± 11.545. They were more likely to intend to blow the whistle within the organisation (15.63 ± 3.085) than outside the organisation (10.77 ± 3.331), with the overall whistleblowing intention mean being 26.4 ± 5.008. Toxic leadership was significantly positively correlated with external whistleblowing (<i>r</i> = 0.282, <i>p</i> < 0.001). <b>Conclusion:</b> A positive correlation was found between toxic leadership and external whistleblowing. Toxic leadership is a significant predictor of nurses' intentions to blow the whistle, and the educational level of nurses also contributes to these intentions. Addressing toxic leadership is crucial for encouraging whistleblowing and fostering a healthier work environment. <b>Implications for Nursing Management:</b> Hospital managers and leaders need to combat toxic leadership, encourage a culture of safe whistleblowing practices, reinforce legal protections for whistleblowers and create ethical leadership training programs for nurse managers.