Need Initial discussion for below assignment

APA format 2 pages long MSN 3 peer review references Due 9/11/18 at 4pm
 Diagnostic Tests in Adults and Children
When seeking to identify a patient’s health condition, advanced practice nurses can use a diverse selection of diagnostic tests and assessment tools; however, different factors affect the validity and reliability of the results produced by these tests or tools. Nurses must be aware of these factors in order to select the most appropriate test or tool and to accurately interpret the results.
Not only do these diagnostic tests affect adults, body measurements can provide a general picture of whether a child is receiving adequate nutrition or is at risk for health issues. These data, however, are just one aspect to be considered. Lifestyle, family history, and culture-among other factors-are also relevant. That said, gathering and communicating this information can be a delicate process.
In this Discussion, you will consider the validity and reliability of  different assessment tools and diagnostic tests. You will explore issues such  as sensitivity, specificity, and positive and negative predictive values. You  will also consider examples of children with various weight issues. You will  explore how you could effectively gather information and encourage parents and  caregivers to be proactive about their children’s health and weight.
To prepare:

Review this week’s learning resources and consider factors that impact   the validity and reliability of various assessment tools and diagnostic   tests. We will also review examples of pediatric patients and their   families as it relates to BMI.
This week you will be assigned one of the following DB by  your instructor.

Select one of the following assessment tools or diagnostic tests to explore for the purposes of this Discussion: Prostate-specific antigen (PSA) test
Select one of the examples on  which to focus for this Discussion. What health issues and risks may be  relevant to the child you selected?

5-year-old girl of normal weight with obese parents

Search the Walden Library and credible sources for resources explaining the tool or test you selected. What is its purpose, how is it conducted, and what information does it gather?
What does the literature  discuss regarding the validity, reliability, and are there any issues with  sensitivity, specificity, predictive values, ethical dilemmas, and  controversies related to the test or tool?
Based on the risks you  identified, consider what further information you would need to gain a full  understanding of the child’s health. Think about how you could gather this  information in a sensitive fashion.
Consider how you could  encourage parents or caregivers to be proactive toward the child’s health.

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