WGU D219 | Evidence-Based Practice & Applied
Nursing Research: Questions with Verified Answers and
Clinical Rationales.
Section 1: Foundations of Evidence-Based Practice (Questions 1-20)
**1. What is the primary purpose of evidence-based practice (EBP) in nursing?**
- **Answer:** To integrate the best available research evidence with clinical
expertise and patient values and preferences to guide clinical decision-making.
- **Rationale:** EBP is not about replacing clinical judgment or reducing nursing
autonomy; rather, it is a three-pronged approach that combines research
evidence, clinical expertise, and patient preferences to optimize patient
outcomes.
**2. Which of the following best describes the relationship between EBP and
research utilization?**
- **Answer:** Research utilization is a component of EBP that focuses specifically
on applying research findings to practice, whereas EBP is a broader process that
also incorporates clinical expertise and patient preferences.
- **Rationale:** Research utilization is the process of translating research findings
into practice, but EBP extends beyond this by considering multiple sources of
evidence and patient values.
**3. What are the five steps of the evidence-based practice process in order?**
- **Answer:** 1) Ask a clinical question, 2) Acquire the best evidence, 3) Appraise
the evidence, 4) Apply the evidence, 5) Assess the outcomes.
,- **Rationale:** This framework—often remembered by the mnemonic "Ask,
Acquire, Appraise, Apply, Assess"—provides a systematic approach to integrating
evidence into clinical practice.
**4. In the EBP process, what is the first step?**
- **Answer:** Formulating a clear, answerable clinical question.
- **Rationale:** The EBP process begins with identifying a knowledge gap or
clinical problem and converting it into a well-structured question that guides the
search for evidence.
**5. What is a PICO(T) question?**
- **Answer:** A structured clinical question format that includes Population,
Intervention, Comparison, Outcome, and (optional) Time.
- **Rationale:** PICO(T) helps clinicians formulate focused, searchable questions
by breaking down the clinical scenario into key components.
**6. In a PICO question, what does the "I" stand for?**
- **Answer:** Intervention.
- **Rationale:** The "I" in PICO refers to the main intervention, treatment, or
exposure being considered.
**7. Which of the following is an example of a well-constructed PICO question?**
- **Answer:** "In hospitalized adult patients (P), does hourly rounding (I)
compared to standard rounding (C) reduce fall rates (O)?"
- **Rationale:** This question includes all PICO elements: Population
(hospitalized adults), Intervention (hourly rounding), Comparison (standard
rounding), and Outcome (reduced fall rates).
, **8. What is the difference between a background question and a foreground
question?**
- **Answer:** Background questions ask for general knowledge about a condition
or topic, while foreground questions ask for specific knowledge about managing a
patient or condition.
- **Rationale:** Background questions are broad and foundational (e.g., "What is
diabetes?"), while foreground questions are specific and patient-centered (e.g.,
"Does metformin reduce HbA1c in type 2 diabetes?").
**9. Which type of question is best answered by a randomized controlled trial?**
- **Answer:** A foreground question about the effectiveness of an intervention.
- **Rationale:** RCTs are considered the gold standard for evaluating the efficacy
of interventions because they minimize bias through randomization.
**10. What is the highest level of evidence according to most evidence
hierarchies?**
- **Answer:** Systematic reviews and meta-analyses of randomized controlled
trials.
- **Rationale:** Systematic reviews synthesize findings from multiple high-quality
studies, providing the most comprehensive and reliable evidence.
**11. What is a systematic review?**
- **Answer:** A comprehensive, structured review that identifies, selects,
appraises, and synthesizes all relevant studies on a specific topic using explicit
methods.
- **Rationale:** Systematic reviews follow a rigorous methodology to minimize
bias and provide a summary of the best available evidence on a topic.
Nursing Research: Questions with Verified Answers and
Clinical Rationales.
Section 1: Foundations of Evidence-Based Practice (Questions 1-20)
**1. What is the primary purpose of evidence-based practice (EBP) in nursing?**
- **Answer:** To integrate the best available research evidence with clinical
expertise and patient values and preferences to guide clinical decision-making.
- **Rationale:** EBP is not about replacing clinical judgment or reducing nursing
autonomy; rather, it is a three-pronged approach that combines research
evidence, clinical expertise, and patient preferences to optimize patient
outcomes.
**2. Which of the following best describes the relationship between EBP and
research utilization?**
- **Answer:** Research utilization is a component of EBP that focuses specifically
on applying research findings to practice, whereas EBP is a broader process that
also incorporates clinical expertise and patient preferences.
- **Rationale:** Research utilization is the process of translating research findings
into practice, but EBP extends beyond this by considering multiple sources of
evidence and patient values.
**3. What are the five steps of the evidence-based practice process in order?**
- **Answer:** 1) Ask a clinical question, 2) Acquire the best evidence, 3) Appraise
the evidence, 4) Apply the evidence, 5) Assess the outcomes.
,- **Rationale:** This framework—often remembered by the mnemonic "Ask,
Acquire, Appraise, Apply, Assess"—provides a systematic approach to integrating
evidence into clinical practice.
**4. In the EBP process, what is the first step?**
- **Answer:** Formulating a clear, answerable clinical question.
- **Rationale:** The EBP process begins with identifying a knowledge gap or
clinical problem and converting it into a well-structured question that guides the
search for evidence.
**5. What is a PICO(T) question?**
- **Answer:** A structured clinical question format that includes Population,
Intervention, Comparison, Outcome, and (optional) Time.
- **Rationale:** PICO(T) helps clinicians formulate focused, searchable questions
by breaking down the clinical scenario into key components.
**6. In a PICO question, what does the "I" stand for?**
- **Answer:** Intervention.
- **Rationale:** The "I" in PICO refers to the main intervention, treatment, or
exposure being considered.
**7. Which of the following is an example of a well-constructed PICO question?**
- **Answer:** "In hospitalized adult patients (P), does hourly rounding (I)
compared to standard rounding (C) reduce fall rates (O)?"
- **Rationale:** This question includes all PICO elements: Population
(hospitalized adults), Intervention (hourly rounding), Comparison (standard
rounding), and Outcome (reduced fall rates).
, **8. What is the difference between a background question and a foreground
question?**
- **Answer:** Background questions ask for general knowledge about a condition
or topic, while foreground questions ask for specific knowledge about managing a
patient or condition.
- **Rationale:** Background questions are broad and foundational (e.g., "What is
diabetes?"), while foreground questions are specific and patient-centered (e.g.,
"Does metformin reduce HbA1c in type 2 diabetes?").
**9. Which type of question is best answered by a randomized controlled trial?**
- **Answer:** A foreground question about the effectiveness of an intervention.
- **Rationale:** RCTs are considered the gold standard for evaluating the efficacy
of interventions because they minimize bias through randomization.
**10. What is the highest level of evidence according to most evidence
hierarchies?**
- **Answer:** Systematic reviews and meta-analyses of randomized controlled
trials.
- **Rationale:** Systematic reviews synthesize findings from multiple high-quality
studies, providing the most comprehensive and reliable evidence.
**11. What is a systematic review?**
- **Answer:** A comprehensive, structured review that identifies, selects,
appraises, and synthesizes all relevant studies on a specific topic using explicit
methods.
- **Rationale:** Systematic reviews follow a rigorous methodology to minimize
bias and provide a summary of the best available evidence on a topic.
