A 45-year-old asymptomatic male undergoes a routine health check-up where a fecal occult blood test is performed to detect early signs of colorectal cancer. This intervention is best described as a:

Explanation

Screening tests are applied to apparently healthy individuals (asymptomatic) to detect unrecognized disease or risk factors. The key characteristic is the application to a seemingly healthy population for early detection. A diagnostic test is performed on individuals with symptoms or positive screening results to confirm or rule out a disease. A prognostic test predicts the future course of a disease, and a confirmatory test is a type of diagnostic test used to confirm a preliminary diagnosis.