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Keywords

Classic, Galactosemia, Galactose-1-phosphate uridyltransferase deficiency disease, Galactose-1-phosphate uridylyltransferase, GALT deficiency

 

Authors

  1. Anderson, Sharon DNP, NNP-BC, APNG

Abstract

Abstract: Galactosemia is an inborn error of galactose metabolism that results from a deficiency in one of three enzymes, uridine diphosphate galactose 4'epimerase, galactokinase, or galactose-1-phosphate uridyltransferase (GALT). This article focuses on classical, clinical variant, and biochemical variant (Duarte) galactosemias caused by GALT enzyme deficiency. A brief overview of galactosemia and newborn screening is presented, followed by detailed information about each of the conditions. Confirmatory testing, acute and long-term management, and outcome for these galactosemia types are discussed as well as the importance of genetic counseling and testing for the infant and family to refine reproductive risk.