A nurse who works in a gerontology clinic is asked to examine the effectiveness of Vitamin D in improving bone mineral density among older clients. The nurse evaluates four recent studies on the topic. Which study provides the best evidence to support the use of vitamin D?
A cross-sectional study that found a strong relationship between Vitamin D intake and bone density.
A time series design study that reported that those who took Vitamin D had improved bone density.
A meta-analysis that concluded that bone density improved among individuals who took Vitamin D.
A cohort study that concluded low levels of Vitamin D were linked to decreased bone mineral density.
The Correct Answer is C
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Articles describing findings from peer-reviewed research studies are the most current and relevant source of information for the nursing staff who want to conduct a study aimed at reducing the rate of nosocomial infections on their unit. Peer-reviewed research studies are original investigations that have been evaluated and approved by experts in the field before publication. They provide the most reliable and valid evidence for nursing practice and research. They also help the nursing staff to identify gaps in knowledge, formulate research questions, design appropriate methods, and interpret results.
The other options are not correct because:
Medical-surgical nursing textbooks published within the past year may provide some general information about nosocomial infections and their prevention, but they are not the most current and relevant source of information for the nursing staff who want to conduct a study. Textbooks are often based on summaries of existing literature and may not reflect the latest evidence or innovations in practice. They also may not address the specific problem or population of interest for the nursing staff.
Hospital infection commitee meeting minutes from the past six months may provide some information about the current policies and procedures related to nosocomial infections in the hospital, but they are not the most current and relevant source of information for the nursing staff who want to conduct a study. Meeting minutes are often brief and incomplete records of discussions and decisions that may not capture the rationale or evidence behind them. They also may not address the specific problem or population of interest for the nursing staff.
Best practice recommendations from trusted professional webpages may provide some information about the current standards and guidelines for nosocomial infection prevention and control, but they are not the most current and relevant source of information for the nursing staff who want to conduct a study. Best practice recommendations are often based on systematic reviews or consensus statements that synthesize existing evidence and expert opinions. They may not reflect the most recent or emerging evidence or innovations in practice. They also may not address the specific problem or population of interest for the nursing staff.
Correct Answer is D
No explanation
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