Which of the following is considered a source of evidence-informed nursing practice?

The choice of theory as a source of evidence-informed nursing practice is accurate because theories provide a structured framework that helps nurses understand and interpret various phenomena in healthcare. They are grounded in research and empirical evidence, assisting in guiding nursing interventions and decision-making processes. The application of theory in practice promotes consistency, enhances clinical reasoning, and improves patient outcomes by applying well-researched principles to individual patient care.

Personal opinions are subjective and often lack the rigor of scientific evidence, making them an unreliable source for informing nursing practice. Historical documents, while potentially insightful, do not possess the contemporary evidence base required for current nursing practices, as they may reflect outdated practices or beliefs that are not supported by modern research. Hence, theory remains the most robust and reliable source to inform nursing practice effectively.