Evidence-Based
Practice, Nursing
Research, and Quality
Improvement
---
**Target Question Count: 50**
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### Question 1
The nurse is implementing an evidence-based practice change on the unit. Which step should the nurse
take first in the evidence-based practice process?
A. Search for the best available evidence
B. Formulate a clinical question using the PICO format
C. Evaluate the outcomes of the practice change
D. Appraise the quality of the evidence
💫RATIONALE✔️✔️: The first step in the evidence-based practice process is to formulate a clinical
question using the PICO format (Patient/Population, Intervention, Comparison, Outcome). This guides
the search for evidence and ensures a focused approach.
💫ANSWER✔️✔️: B. Formulate a clinical question using the PICO format
---
### Question 2
The nurse manager is implementing a quality improvement initiative to reduce falls on the unit. Which
type of study design provides the highest level of evidence for this intervention?
A. Randomized controlled trial
B. Systematic review and meta-analysis
,C. Cohort study
D. Case-control study
💫RATIONALE✔️✔️: A systematic review and meta-analysis provides the highest level of evidence as
it synthesizes results from multiple studies. Randomized controlled trials provide strong evidence but
are ranked below systematic reviews in the evidence hierarchy.
💫ANSWER✔️✔️: B. Systematic review and meta-analysis
---
### Question 3
A nurse researcher is conducting a study to evaluate the effectiveness of a new wound care protocol.
Which research design is most appropriate for establishing a cause-and-effect relationship?
A. Descriptive study
B. Correlational study
C. Randomized controlled trial
D. Case study
💫RATIONALE✔️✔️: A randomized controlled trial (RCT) is the most appropriate design for
establishing cause-and-effect relationships because it controls for confounding variables and minimizes
bias through randomization. Descriptive and correlational studies describe relationships but cannot
prove causation.
💫ANSWER✔️✔️: C. Randomized controlled trial
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### Question 4
The nurse is appraising a research article about pain management interventions. Which component of
the study indicates the results are valid and reliable?
A. The study was published in a peer-reviewed journal
B. The sample size was large and representative
C. The study used valid and reliable measurement tools
D. All of the above
💫RATIONALE✔️✔️: Validity and reliability of research findings are supported by peer review,
adequate sample size, and the use of valid and reliable measurement tools. All of these factors
contribute to the quality of the evidence.
💫ANSWER✔️✔️: D. All of the above
---
### Question 5
The nurse is implementing a new evidence-based protocol for preventing ventilator-associated
pneumonia (VAP). Which outcome measure is most appropriate for evaluating the effectiveness of this
protocol?
A. The number of VAP cases on the unit has decreased
Practice, Nursing
Research, and Quality
Improvement
---
**Target Question Count: 50**
,---
### Question 1
The nurse is implementing an evidence-based practice change on the unit. Which step should the nurse
take first in the evidence-based practice process?
A. Search for the best available evidence
B. Formulate a clinical question using the PICO format
C. Evaluate the outcomes of the practice change
D. Appraise the quality of the evidence
💫RATIONALE✔️✔️: The first step in the evidence-based practice process is to formulate a clinical
question using the PICO format (Patient/Population, Intervention, Comparison, Outcome). This guides
the search for evidence and ensures a focused approach.
💫ANSWER✔️✔️: B. Formulate a clinical question using the PICO format
---
### Question 2
The nurse manager is implementing a quality improvement initiative to reduce falls on the unit. Which
type of study design provides the highest level of evidence for this intervention?
A. Randomized controlled trial
B. Systematic review and meta-analysis
,C. Cohort study
D. Case-control study
💫RATIONALE✔️✔️: A systematic review and meta-analysis provides the highest level of evidence as
it synthesizes results from multiple studies. Randomized controlled trials provide strong evidence but
are ranked below systematic reviews in the evidence hierarchy.
💫ANSWER✔️✔️: B. Systematic review and meta-analysis
---
### Question 3
A nurse researcher is conducting a study to evaluate the effectiveness of a new wound care protocol.
Which research design is most appropriate for establishing a cause-and-effect relationship?
A. Descriptive study
B. Correlational study
C. Randomized controlled trial
D. Case study
💫RATIONALE✔️✔️: A randomized controlled trial (RCT) is the most appropriate design for
establishing cause-and-effect relationships because it controls for confounding variables and minimizes
bias through randomization. Descriptive and correlational studies describe relationships but cannot
prove causation.
💫ANSWER✔️✔️: C. Randomized controlled trial
, ---
### Question 4
The nurse is appraising a research article about pain management interventions. Which component of
the study indicates the results are valid and reliable?
A. The study was published in a peer-reviewed journal
B. The sample size was large and representative
C. The study used valid and reliable measurement tools
D. All of the above
💫RATIONALE✔️✔️: Validity and reliability of research findings are supported by peer review,
adequate sample size, and the use of valid and reliable measurement tools. All of these factors
contribute to the quality of the evidence.
💫ANSWER✔️✔️: D. All of the above
---
### Question 5
The nurse is implementing a new evidence-based protocol for preventing ventilator-associated
pneumonia (VAP). Which outcome measure is most appropriate for evaluating the effectiveness of this
protocol?
A. The number of VAP cases on the unit has decreased
