Evidence-Based Practice and Nursing Research

Nursing Research Overview

Nursing research plays a critical role in advancing nursing practice by providing a significant body of knowledge that supports clinical decision-making and improves patient care.

Types of Research:

  1. Basic Research: Generates theories to expand the understanding of fundamental concepts.

    • Example: Studying the cellular mechanisms involved in wound healing.

  2. Applied Research: Tests these theories in real-world settings with various populations.

    • Example: Testing the effectiveness of a new wound care technique in a hospital setting.

  3. Clinical Research: Focuses on the effectiveness of interventions in healthcare practice.

    • Example: Comparing two different pain management strategies for postoperative patients.

American Nurses Association (ANA) Research Standards

  • Nurses are expected to use the best available evidence from research findings to guide their practice and make informed clinical decisions.

  • Participation in research activities is encouraged to enhance the knowledge base and improve patient outcomes.

Methods of Research

Nurses use three main types of research methods, each with a specific purpose for data collection:

  1. Quantitative Research: Produces data in the form of numbers, focusing on measurable outcomes.

    • Example: A study measuring the blood pressure of patients before and after administering a new drug.

  2. Qualitative Research: Produces data based on beliefs, thoughts, and feelings, emphasizing patient experiences.

    • Example: Exploring the emotional impact of chronic illness through patient interviews.

  3. Mixed Methods: Combines both qualitative and quantitative approaches to provide a comprehensive view of a healthcare issue.

Evidence-Based Practice (EBP)

EBP is the integration of:

  • Best research evidence

  • Clinical expertise and experience

  • Patient values and needs

The goal of EBP is to deliver quality, cost-effective healthcare that promotes positive outcomes for patients. For example, choosing the most effective treatment for pressure ulcers based on the latest research, clinical judgment, and patient preferences.

Key Concepts in Research

  • Data: Information expressed as either numbers or words.

  • Dependent and Independent Variables:

    • Independent Variables: Factors that are manipulated or changed in an experiment.

    • Dependent Variables: The outcomes that are measured.

    • Control Group: A group that does not receive the intervention, used for comparison.

  • Literature Review: A critical analysis of current information conducted after identifying a research problem. Literature is considered current if published within the past 5 years.

Ethical Principles in Research

Research involving human subjects must adhere to strict ethical principles, including:

  • Beneficence: The act of doing good, such as medicating for pain or providing immunizations.

  • Justice: The obligation to treat everyone fairly and equitably.

  • Autonomy: Respecting a patient's freedom to make their own decisions.

Informed Consent: Participants must be fully informed about the study and agree to participate voluntarily.

Confidentiality and Anonymity

Under HIPAA (Health Insurance Portability and Accountability Act), patient data must be kept confidential, and anonymity must be preserved to protect participants' privacy.

Data Analysis and Dissemination of Research

Once data is collected, it must be analyzed and the outcomes disseminated through:

  • Publication

  • Formal Presentations (e.g., conferences)

  • Informal Discussions (e.g., team meetings)

The findings are then applied to evidence-based practice through EBP committees and professional organizations.

Evidence Levels

  • Level I: Evidence from systematic reviews or meta-analyses of randomized controlled trials (RCTs).

  • Level II: Evidence from at least one well-designed RCT.

  • Level III: Evidence from controlled studies without randomization (quasi-experimental studies).

  • Level VII: Evidence from opinions of authorities and/or expert committee reports.

Types of Research

  • Descriptive Study: Describes characteristics or details about a population or phenomenon.

  • Correlational Study: Examines the relationship between two or more variables but does not establish cause and effect.

  • Randomized Controlled Trial (RCT): Participants are randomly assigned to groups to test the effect of an intervention.

  • Controlled Trial Without Randomization: Participants are assigned to groups without randomization to test an intervention

Conducting Evidence-Based Research (Phases)

  1. Assess the Problem: Identify a clinical issue that needs to be addressed.

  2. Develop a Research Question: Use the PICO framework to form a question:

    • P: Patient or Population

    • I: Intervention

    • C: Comparison

    • O: Outcome

    • Example: "Does removing bandages slowly (I) cause less pain (O) than removing them quickly (C) in burn patients (P)?"

  3. Search for Evidence: Conduct a literature review to find relevant studies.

  4. Evaluate, Develop, Implement, and Reevaluate: Develop interventions based on the evidence, implement them, and assess their effectiveness.

Magnet Hospital Status

A Magnet Hospital is recognized for its excellence in patient care and nursing practice. Characteristics include:

  • Excellent patient outcomes due to evidence-based practice.

  • High job satisfaction among nurses with low turnover rates.

  • Commitment to research and use of best practices.

  • Patient Involvement: Nurses involve patients in the decision-making process to tailor care to individual needs.

  • Evidence-Based Care: Magnet hospitals base their practice on research rather than outdated traditions.

Example: A local Magnet Hospital encourages its nurses to participate in research studies to continually improve patient outcomes.

Barriers to Evidence-Based Practice

Implementing EBP can be challenging due to:

  • Resistance to Change: Some healthcare professionals are reluctant to change longstanding practices.

  • Communication Issues: Poor communication can hinder the dissemination of new evidence.

  • Funding Limitations: Conducting research and implementing EBP requires financial resources, which may not always be available.

Key Takeaways

  • Nursing research provides the foundation for improving patient care through evidence-based practice.

  • EBP combines research, clinical expertise, and patient preferences to ensure high-quality, individualized care.

  • Understanding and overcoming barriers to EBP is essential for promoting the best outcomes for patients.