Screening is a double-edged sword, sometimes wielded clumsily by the well-intended. Although ubiquitous in contemporary medical practice, screening remains widely
misunderstood and misused. Screening is defined as tests done among apparently well people to identify those at an increased risk of a disease or disorder. Those identified
are sometimes then offered a subsequent diagnostic test or procedure, or, in some instances, a treatment or preventive medication.1 Looking for additional illnesses in
those with medical problems is termed case finding;2,3 screening is limited to those apparently well.