Describe the influence “levels of evidence” have on practice changes. Identify the most reliable level of evidence and provide an example of the type of practice change that could result from this level of evidence.
Initial discussion question posts should be a minimum of 200 words and include at least two references cited using APA format. Responses to peers or faculty should be 100-150 words and include one reference. Refer to “RN-BSN Discussion Question Rubric” and “RN-BSN Participation Rubric,” located in Class Resources, to understand the expectations for initial discussion question posts and participation posts, respectively.
The Influence of Levels of Evidence on Practice Changes
Evidence-based practice (EBP) is a cornerstone of modern healthcare, ensuring that patient care is guided by the best available research. The levels of evidence hierarchy ranks studies based on their methodological rigor, reliability, and risk of bias, significantly influencing practice changes. Higher levels of evidence provide stronger support for clinical decision-making, reducing the likelihood of adopting ineffective or harmful interventions.
The most reliable level of evidence is systematic reviews and meta-analyses of randomized controlled trials (RCTs). These studies synthesize data from multiple RCTs, offering a comprehensive analysis of treatment efficacy and safety (Melnyk & Fineout-Overholt, 2019). For example, a systematic review demonstrating the benefits of early mobilization in critically ill patients has led to practice changes promoting early physical therapy in intensive care units, improving patient outcomes such as reduced hospital stays and complications (Schweickert et al., 2009).
Lower levels of evidence, such as expert opinions and case reports, still contribute to clinical knowledge but lack the same degree of reliability. Thus, healthcare providers should prioritize high-level evidence when implementing practice changes to enhance patient care and safety.
References
Melnyk, B. M., & Fineout-Overholt, E. (2019). Evidence-based practice in nursing & healthcare: A guide to best practice (4th ed.). Wolters Kluwer.
Schweickert, W. D., Pohlman, M. C., Pohlman, A. S., Nigos, C., Pawlik, A. J., Esbrook, C. L., … & Kress, J. P. (2009). Early physical and occupational therapy in mechanically ventilated, critically ill patients: A randomised controlled trial. The Lancet, 373(9678), 1874-1882. https://doi.org/10.1016/S0140-6736(09)60658-9