NR503 Week 2 Screening Diagnostic Tool FAQ. NR 503: Population Health, Epidemiology and Statistical Principles

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During Week 2, in the Discussion Board and with the HP2020 Impact Paper, you are asked to select a screening or diagnostic tool to analyze. You are then required to provide a review of the statistics... related to the diagnostic tool, for instance sensitivity, specificity and the predictive value of the screening/diagnostic tool. What do these terms mean exactly? In Chapter three (3) of your textbook Curly& Vitale (2016) discuss the implications of screening and the use of the following values (see the section “Screening”): FAQ: What is a…? 1. Screening or diagnostic tool: Instrument used to detect disease in groups of individuals with the goal of reducing and/or preventing morbidity and mortality. Examples: Beck’s Depression Screening Tool, Attention Deficit Screening Tool, Pap smear, mammography, colonoscopy, cologuard or the Mini-Nutritional Assessment screening tool (https://www.ncoa.org/center-for-healthy-aging/resourcehub/community-orgs-and-professionals/professional-resources/malnutrition-screening-tools/). FAQ: What is the meaning of…? 2. Predictive value of a test:(PV) is a measure of the probability of a positive test result when the disease is present. a. Positive predictive value: The number of the people who test positive who actuallyhave the disease. b. Negative predictive value: The number of the people who test negative who truly do not have the disease. 3. Sensitivity: measure of a screening test’s ability to accurately identify disease when it is present. The higher the sensitivity of a tool, the fewer the cases that will go undetected and the greater sensitivity of the tool to detect disease. For example, in-office tests for influenza or for Beta Hemolytic Strep Throat. They may be specific to influenza BUT are they also sensitive enough to pick up the organism? 4. Specificity: measure of a screening test’s ability to correctly identify those with the disease and to exclude the persons who do not have the disease. The higher the specificity of the screening tool the fewer persons will be incorrectly identified at-risk. So, this means the test is specific to the organism for instance, to influenza, and that it will be up influenza and not mononucleosis for example, of Beta Hemolytic Strep throat. 5. Validity: ability of the tool to actually measure what it says it measures. Curley, A.L. & Vitale, P.A. (2016). Population-Based Nursing: Concepts and Competencies for Advanced Practice (2nd ed.). New York, NY: Springer Publishing. Week 2: Discussion - Epidemiological Methods This discussion board content is intended to facilitate learning for students through engaging dialogues as they achieve the desired learning outcomes/competencies associated with their course in a manner that empowers them to organize, integrate, apply and critically appraise their knowledge to their selected field of practice. The use of discussions provides students with opportunities to contribute graduate level-appropriate knowledge and experience to the topic in a safe, caring, and fluid environment that models professional and social interaction. The ebb and flow of a discussion is based upon the composition of student and faculty interaction in the quest for relevant scholarship. Participation in the discussion generates opportunities for students to actively engage in the written ideas of others by carefully reading, researching, reflecting, and responding to the contributions of their peers and course faculty. Discussions foster the development of members into a community of learners as they share ideas and inquiries, consider perspectives that may be different from their own, and integrate knowledge from other disciplines Activity Learning Outcomes Through this assignment, the student will demonstrate the ability to: 1. Discriminate among various screening tools that may be used in the provision of care as an Advanced Practice Nurse (CO4) Due Date:  • Initial prompt due by Wednesday, 11:59 PM MT of week 2 • One peer and one faculty or two peer posts due by Sunday 11:59 PM MT of week 2 A 10% late penalty will be imposed for initial discussions posted after the weekly deadline regardless of the number of days late. No postings will be accepted after 11:59pm MT on Sunday (i.e. student will receive an automatic 0). Week 8 discussion closes on Saturday at 11:59pm MT. Points: 60 points Assignment Requirements 1. Choose one of the following: o Rapid Strep Screening (in office) o Rapid HIV Screening o Rapid Influenza Screening o Mononucleosis Screening [Show More]

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