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 on the weaker channel 6 signal under the same calls). "Note: Some stations were owned by Ion Media Networks under its former name Paxson Communications prior to the 1998 launch of Ion Television as Pax TV." Notes:<br> TBN has never sold one of its full-power television stations (either one it owns outright or through its Community Educational Television subsidiary), though several translator stations have been sold off since the digital transition to other parties for either spectrum speculation, to become translators of other commercial stations, or in the case of W41BN in Dothan, Alabama, to become an affiliate of one