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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:
Mammogram
Prostate-specific antigen (PSA) test
Body-mass index (BMI) using waist circumference for adults