Role ambiguity is recognized as a significant psychological risk stressor in nursing practice, which undermines the psychological well-being of nurses. Since the well-being of nurses plays a crucial role in ensuring positive patient outcomes, it becomes imperative to identify strategies for improving nurses' psychological well-being.

This study aimed to explore the effects of role ambiguity on anxiety in intensive care unit nurses and the mechanisms mediating emotional intelligence.

In April–June 2023, a convenience sampling method was used to collect data from 360 intensive care unit nurses in a total of 7 hospitals in Shaanxi Province, Hunan Province, Beijing, and Jiangsu Province, China. A linear regression model was used to verify the mediating effect.

Role ambiguity was significantly and positively associated with anxiety in ICU nurses (p < 0.01). A mediating mechanism between role ambiguity and anxiety was established for emotional intelligence (p < 0.01).

Role ambiguity has a significant impact on the mental health of intensive care nurses, and emotional intelligence plays a mediating role in reducing role ambiguity and anxiety in nurses.

This study highlights that role ambiguity in the intensive care unit setting increases nurses' anxiety, while emotional intelligence alleviates the anxiety associated with role ambiguity. Creating support systems and improving the environment is a top priority for nursing administrators. This includes, but is not limited to, clarifying the roles of nurses, conducting social-emotional training, and developing emotional intelligence to prevent and regulate nurses' anxiety and maintain mental health.

Role ambiguity

Emotional intelligence

Anxiety

Intensive care units

Nurses

© 2023 The Authors. Published by Elsevier Ltd.