When using evidence-based interventions to evaluate population-based services, a public health nurse is addressing which core function?

• A. Assessment.
• B. Assurance.
• C. Policy development.
• D. Research.

Answer: (B)

Assurance is about ensuring that essential health services are provided effectively, equitably, and with accountability. When a public health nurse uses evidence-based interventions to evaluate population-based services, she is checking that those services are delivering the intended outcomes, are accessible, and meet quality standards. This evaluative, quality-focused work fits with assurance, which covers monitoring and improving how services are delivered.

Assessment involves collecting data on health status and needs to inform action. Policy development is about creating guidelines or laws to direct actions. Research is about generating new knowledge or testing new ideas. Evaluating services with evidence-based interventions sits squarely with assurance, the function that ensures programs actually work in practice and are held to standards.