Triple test Triple test The triple test, also called triple screen, the Kettering test or the Bart's test, is an investigation performed during pregnancy in the second trimester to classify a patient as either high-risk or low-risk for chromosomal abnormalities (and neural tube defects). The term "multiple-marker screening test" is sometimes used instead. This term can encompass the "double test" and "quadruple test" (described below). The Triple screen measures serum levels of AFP, estriol, and beta-hCG, with a 70% sensitivity and 5% false-positive rate. It is complemented in some regions of the United States, as the "Quad screen" (adding inhibin A to
Owned-and-operated television stations in the United States stations were subsequently acquired by the Sinclair Broadcast Group; WLWC, in turn, has since been spun off to OTA Broadcasting, LLC. In June 2010, CBS announced the sale of its Norfolk, Virginia CW O&O WGNT (channel 27) to Local TV, then owner of that market's CBS affiliate WTKR-TV (channel 3) (as well as seven former Fox O&O stations). This created the second television duopoly in that market (the first involved LIN TV-owned NBC affiliate WAVY-TV (channel 10) and Fox affiliate WVBT (channel 43)). As part of the deal, Local TV would take over the operations of WGNT through a time