Which of the following best describes the purpose of screening tests?

The purpose of screening tests is primarily to detect potential diseases at an early stage before symptoms appear. This proactive approach is aimed at identifying individuals who may have a condition, enabling early intervention and management, which can lead to better health outcomes.

Screening tests are designed to identify risk factors or early signs of disease, allowing for further diagnostic evaluation to be carried out when necessary. They are usually non-invasive, less expensive, and simpler than diagnostic tests, serving the purpose of identifying at-risk populations rather than confirming an existing diagnosis.

In contrast, confirming a diagnosis typically requires more specific and comprehensive tests that assess the presence and extent of a disease. Screening tests are not intended to replace diagnostic tests, as each serves a distinct role in patient care—screening for early detection and diagnosis for confirmation of a suspected condition. Providing therapeutic intervention is also not the primary focus of screening tests; rather, they function as a first step in identifying potential health issues.