Research & Evidence-Based Practice Flashcards
7 cards from real Cardiac Vascular Nursing Exam practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Research & Evidence-Based Practice flashcards as text
When critically appraising a randomized controlled trial (RCT) on anticoagulation therapy, which element BEST indicates internal validity?
Answer: Allocation concealment preventing selection bias
Allocation concealment prevents researchers from knowing group assignments before randomization, protecting against selection bias and ensuring internal validity.
A cardiac nurse wants to implement a new evidence-based protocol for post-PCI care. Which framework is MOST appropriate for guiding this practice change?
Answer: Iowa Model of Evidence-Based Practice
The Iowa Model provides a stepwide framework specifically designed to guide evidence-based practice changes in clinical settings, including trigger identification, team formation, and pilot testing.
In a study on cardiac rehabilitation outcomes, the p-value is reported as 0.03. What does this indicate?
Answer: There is a 3% probability the results occurred by chance alone
A p-value of 0.03 means there is a 3% probability of obtaining the observed results (or more extreme) if the null hypothesis were true.
A systematic review on thrombolytic therapy for acute MI reports a Number Needed to Treat (NNT) of 25. How should a cardiovascular nurse interpret this?
Answer: 25 patients must be treated for one patient to experience benefit
NNT of 25 means 25 patients must receive the treatment for one additional patient to achieve the desired outcome compared to control.
Which level of evidence is considered HIGHEST in the evidence hierarchy for cardiac nursing practice decisions?
Answer: Systematic review with meta-analysis of RCTs
Systematic reviews with meta-analysis of multiple RCTs represent the highest level of evidence by synthesizing data across studies, reducing random error and bias.
A nurse is evaluating a study reporting a relative risk reduction (RRR) of 50% for statin therapy. The control group event rate is 4%. What is the absolute risk reduction (ARR)?
Answer: 2%
ARR = control event rate × RRR = 4% × 50% = 2%, meaning the absolute difference in event rates between groups is 2%.
When implementing evidence-based anticoagulation guidelines, a nurse notices a conflict between two high-quality systematic reviews. What is the BEST next step?
Answer: Consult an interdisciplinary team and examine guideline methodology differences
When evidence conflicts, convening an interdisciplinary team and examining methodological differences between reviews allows for the most informed, patient-centered decision.
How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy
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