What is the much narrower purpose that directs the use of a Diagnostic Test?

Answer

To confirm or rule out a specific condition suspected by the healthcare provider.

Unlike screening tests, which cast a wide net, diagnostic tests are employed with high specificity. They are ordered when there is already a clinical suspicion—based on observable data, reported symptoms, or preliminary findings—regarding a particular ailment. The test's goal is highly focused: to provide conclusive evidence to either validate that specific suspicion (confirming the diagnosis) or eliminate it as a possibility (ruling it out), thereby narrowing the focus of the clinical assessment.

What is the much narrower purpose that directs the use of a Diagnostic Test?
testDiagnosisInterpretationResult