Use of Tandem Mass Spectrometry for Multianalyte Screening of Dried Blood Specimens from Newborns

Abstract

Background:Over the past decade laboratories that test for metabolic disorders have introduced tandem mass spectrometry (MS/MS), which is more sensitive, spe-cific, reliable, and comprehensive than traditional as-says, into their newborn-screening programs. MS/MS is rapidly replacing these one-analysis, one-metabolite, one-disease classic screening techniques with a one-analysis, many-metabolites, many-diseases approach that also facilitates the ability to add new disorders to existing newborn-screening panels.