Evidence-Based Practice, Research, and Performance Improvement Notes

Core Concepts and Foundations of Evidence-Based Practice

  • Evidence-Based Practice (EBP): A problem-solving clinical approach that combines the best scientific evidence with clinician expertise, patient preferences and values, and available health care resources.
  • Evidence: A testimony of facts that proves or disproves a conclusion. Primary sources include textbooks, healthcare literature, and peer-reviewed journals.
  • Historical Contributions:
    • Semmelweis: Discovered that fever in women after delivery was caused by infection from inadequate hand washing.
    • Nightingale: Reduced infection rates during the Crimean War by implementing infection control practices.
    • Cochrane: Used randomized, controlled trials to incorporate evidence into medical practice.
  • Benefits of EBP: Enhances care quality, improves patient safety and outcomes, increases nurse satisfaction, and reduces healthcare costs.

The Seven Steps of Evidence-Based Practice

  • 1. Cultivate a spirit of inquiry: Maintain continuous curiosity and foster a culture where nurses are encouraged to question existing clinical practices.
  • 2. Ask a clinical question: Formulate relevant clinical questions (e.g., determining primary fall risk factors in elderly patients or effective fall prevention strategies in nursing homes).
  • 3. Search for the best evidence: Consult resources such as policies, procedure manuals, quality improvement data, clinical practice guidelines, and peer-reviewed journals.
  • 4. Critically appraise the evidence: Review sources to evaluate scientific worth, study methodology strength, level of evidence, feasibility, and clinical usefulness.
  • 5. Integrate the evidence: Apply research into care plans as a rationale and educate staff to ensure proper implementation.
  • 6. Evaluate the outcomes: Assess the effectiveness of practice changes using observable and measurable outcomes.
  • 7. Communicate the outcomes: Share results to support continuous clinical practice improvement.

Nursing Research and Performance Improvement

  • Nursing Research: Systematic inquiry designed to build generalizable knowledge by evaluating the benefits, risks, costs, and holistic effects of treatments using observable and measurable outcomes.
  • Performance Improvement (PI): An organizational approach that reviews existing processes (e.g., discharge procedures, medication delivery, radiological procedures) to enhance quality and lower costs without introducing new evidence-based practices.
  • Error and Event Classifications:
    • Sentinel Events: Unexpected occurrences involving death or serious physical or psychological injury to a patient.
    • Active Errors: Direct acts performed by healthcare personnel.
    • Latent Errors: Structural flaws within organizational systems or process steps.
  • Process Differences:
    • EBP: Uses existing research and evidence to determine safe, effective care and improve patient outcomes.
    • Research: Conducts systematic inquiry to contribute to the generalizable knowledge base of nursing.
    • QI/PI: Optimizes local work processes and health system efficiency; findings are usually not generalizable.