Question

a public health nurse is teaching a newly licensed nurse how to determine the prevalence rate of the top diseases in the county. which of the following information should the nurse provide to describe prevalence rate?

• \the prevalence rate considers only those at risk for disease.\
• \the prevalence rate considers new cases of disease.\
• \the prevalence rate is a mortality measure.\
• \a case - control study is used to measure the prevalence rate.\

Explanation:

To determine the correct description of prevalence rate:

• Prevalence rate includes all individuals with the disease (both new and existing), so "The prevalence rate considers only those at risk for disease" is incorrect.
• Incidence rate considers new cases, not prevalence, so "The prevalence rate considers new cases of disease" is wrong.
• Prevalence is about existing cases, not mortality, so "The prevalence rate is a mortality measure" is incorrect.
• Case - control studies can be used to measure prevalence (by looking at existing cases and controls), so this statement is correct.

Answer:

The correct option is: "A case - control study is used to measure the prevalence rate."