Clinical Nurse Specialist Evidence-Based Practice & Research 2

Question 1

A CNS is conducting a literature search for evidence on preventing ventilator-associated pneumonia (VAP). Which database is most appropriate as the PRIMARY source for peer-reviewed nursing and medical research?

Accepted Answer

PubMed/MEDLINE — the primary biomedical and nursing research database maintained by the National Library of Medicine

Answer

PubMed/MEDLINE is the primary peer-reviewed biomedical literature database — comprehensive, free, with MeSH (Medical Subject Headings) for precise searching.

Question 2

A CNS is conducting a quality improvement project on sepsis recognition. To measure the reliability of the nursing sepsis screening tool, which statistical test measures interrater reliability between two nurses using the same tool on the same patients?

Accepted Answer

Cohen's kappa — measures agreement between two raters beyond chance for categorical assessments

Answer

Cohen's kappa measures interrater reliability (agreement between two raters) for categorical assessments, correcting for chance agreement — the appropriate statistic for a binary screening tool.

Question 3

A CNS is reviewing the GRADE (Grading of Recommendations Assessment, Development and Evaluation) framework for rating evidence quality. Which scenario describes evidence that should be DOWNGRADED from high to moderate quality?

Accepted Answer

A large RCT with significant risk of bias due to lack of blinding in a subjective outcome study (e.g., pain scale)

Answer

GRADE downgrades evidence for risk of bias — lack of blinding in studies with subjective outcomes (pain, quality of life) can significantly bias results toward the intervention.

Question 4

A CNS completes an EBP project that reduces CLABSI rates. Before disseminating findings, which step is most important to ensure the quality improvement data can be meaningfully shared?

Accepted Answer

Determine whether the project constitutes 'research' or 'quality improvement' — if QI, IRB exemption or waiver may apply; then select appropriate dissemination venue

Answer

Distinguishing QI from research determines IRB requirements — most EBP/QI projects qualify for exemption or expedited review; the CNS must clarify this before dissemination.

Question 5

A CNS is implementing a new EBP guideline for delirium prevention using the ABCDE bundle. Six months after implementation, compliance is 40%. Using Everett Rogers' Diffusion of Innovations theory, which adopter category best describes the majority of nurses who have not yet adopted the practice?

Accepted Answer

Late majority — they are skeptical and adopt only after most peers have, requiring social norms to shift

Answer

At 40% adoption (with 60% not yet adopting), the non-adopters are likely in the early-to-late majority who require social proof and peer validation before committing to the change.

Clinical Nurse Specialist Practice Test

Clinical Nurse Specialist Practice Test

Clinical Nurse Specialist Evidence-Based Practice & Research 2