Topic 1: Defining Internal and External Evidence
- Discuss the difference between external and internal evidence as it relates to your PICOT search strategy.
- Address the strengths and weaknesses of searching in a databank versus a web-based search engine. You must use two databanks mentioned in the text.
Please see the Discussion Board grading rubric on the Course Home.
Topic 2: Database Choice for Your PICOT Question
Repost your PICOT question and then summarize the following for peer and instructor feedback;
- What databases did you explore? (must list a minimum of three)
- Based on your PICOT question, what is the database that you have selected to use? Elaborate on your choice, providing example of the levels of evidence available for your PICOT question in the database.
How to solve
Defining Internal and External Evidence Nursing Assignment Help
Introduction:
As a medical professor, it is essential to understand the concept of evidence-based practice (EBP) and its application in healthcare. One key aspect of EBP is the ability to search for and critically evaluate internal and external evidence. In this assignment, we will discuss the difference between internal and external evidence and the strengths and weaknesses of searching in databanks versus web-based search engines. We will also explore the process of selecting appropriate databases for a PICOT question and the levels of evidence available in each database.
Topic 1:
Internal evidence refers to the information obtained from a patient’s medical history, physical examination, laboratory results, and other clinical data collected during the patient’s care. External evidence, on the other hand, refers to scientific information obtained from research studies, systematic reviews, and other literature sources. When searching for external evidence for a PICOT question, it is essential to search for primary and secondary sources and critically appraise them to determine their validity and applicability to the clinical question.
When searching for evidence, we can use databanks or web-based search engines. Databanks, such as PubMed and CINAHL, offer more comprehensive coverage of relevant literature and provide tools for refining searches, such as Medical Subject Headings (MeSH) and other controlled vocabulary terms. However, they may require more advanced knowledge of search strategies and subject-specific terminology. Conversely, web-based search engines, such as Google Scholar, provide a more accessible search tool but may offer less comprehensive coverage of the literature and lack the advanced search features of databanks.
Topic 2:
PICOT question: In adults with type 2 diabetes, does regular exercise reduce blood sugar levels compared to those who do not exercise?
Three databases explored: PubMed, Cochrane Library, and CINAHL
Database selected: PubMed
PubMed was selected for the PICOT question because it is a comprehensive database that specializes in biomedical and health sciences literature. PubMed offers a range of search filters and MeSH terms that allow for precision searches to be conducted, ensuring that all literature relevant to the PICOT question is included in the search results. In addition, PubMed offers a range of article types, including systematic reviews, randomized controlled trials, and observational studies, ensuring the availability of primary and secondary sources for evidence-based decision making.
In PubMed, systematic reviews and meta-analyses provide the highest level of evidence, followed by randomized controlled trials and observational studies. PubMed’s Clinical Queries feature can also help identify relevant evidence for clinical practice, providing multiple filters for each PICO element. Therefore, PubMed is an ideal database for evidence-based answers to the PICOT question.
Conclusion:
In conclusion, as a medical professor, it is important to teach students how to search for and critically appraise internal and external evidence to make informed healthcare decisions. Using appropriate databases and search engines can influence the effectiveness of evidence-based practice, as the ability to identify accurate, comprehensive, and reliable evidence is essential for the provision of quality healthcare.
