Abstract

For over four decades, knowledge that symptoms of some inherited diseases can be prevented or reduced via early detection and treatment in newborns has underpinned state-funded screening programs in most developed countries. Conditions for which newborn screening is now a recognized preventative public health initiative include phenylketonuria, congenital hypothyroidism, and, more recently, cystic fibrosis and sickle cell disorder. The use of tandem mass spectrometry to detect conditions such as amino-acidopathies and fatty-acid oxidation defects is also becoming increasingly prevalent. a.