Related Experiment Video
Updated: Aug 15, 2026

Implementation of Non-invasive Point of Care Transient Elastography for Evaluation of Liver Disease in Pediatric Populations with Cystic Fibrosis
Published on: August 29, 2025
Understanding newborn screening system issues with emphasis on cystic fibrosis screening
Bradford L Therrell1, Michele A Lloyd-Puryear, Marie Y Mann
1National Newborn Screening and Genetics Resource Center, Austin, TX 78757, USA. therrell@uthscsa.edu
Abstract:
Newborn screening (NBS) includes biochemical testing for certain medical conditions that can cause devastating consequences if left undetected and untreated. Mandated screening requires a complex support system to ensure its effectiveness. There are 51 separate NBS programs in the United States, all with different administrative structures and screening panels. Only 8 states mandate screening for cystic fibrosis (CF) and 2 of these are just beginning. Optional NBS for CF reaches significant numbers of newborns in 3 other states but the CF screens are only projected to reach about 20% of the newborn population in 2005. Forthcoming recommendations for NBS screening from the federal Advisory Committee on Heritable Diseases and Genetic Disorders in Newborns and Children (ACHDGDNC) will impact decisions about NBS panels and professional and consumer advocacy will play an important role in deciding the directions in which NBS programs move. For effective CF NBS, CF care centers will need to partner with NBS programs to ensure optimal health benefits, and programs will need to continually evaluate diagnostic and outcome data in order to refine their screening protocols.
Related Concept Videos
Cystic Fibrosis: Pathogenesis
CF is primarily caused by a genetic mutation in a chromosome 7 gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The most common gene mutation leading to CF is the ΔF508 mutation, but...
Genetic Screens
Forward genetic screens
Forward or “classical” genetic screens involve creating random mutations in an organism’s DNA using radiation, mutagens, or insertion of additional bases, which result in visible changes...

