What is the role of systematic reviews in evidence-based practice?

Rationale: A. Implementing practice changes without evidence is contrary to evidence-based practice. Systematic reviews provide a rigorous, evidence-based foundation for making informed clinical decisions. B. Offering subjective opinions is not the purpose of systematic reviews. They rely on objective evaluation of multiple studies rather than individual viewpoints or anecdotal experiences. C. Systematic reviews summarize and critically appraise research findings from multiple studies on the same topic. By integrating results from several high-quality studies, they provide comprehensive evidence that helps guide clinical decision-making, identify best practices, and reduce variability in patient care. This synthesis strengthens the reliability of evidence used in practice. D. Guidelines based solely on expert consensus do not necessarily incorporate a comprehensive review of existing research. Systematic reviews, in contrast, are evidence-driven and assess the quality and outcomes of multiple studies to support guideline development.