<unk>  is a medical condition characterized by mildly or strongly elevated concentrations of the amino acid phenylalanine in the blood. Phenylketonuria (PKU) can result in severe<unk> . Phenylalanine concentrations (phe) are routinely screened in newborns by the neonatal heel prick (Guthrie test), which takes a few drops of blood from the heel of the infant. Standard phe concentrations in unaffected persons are about 60µM: phe concentrations in persons with untreated phenylketonuria may be many times that (600µM to 2400µM), which indicate that the child is at risk for severe intellectual disability. Phenylketonuria is classed as an autosomal recessive condition: in heterozygous form, phe shows a moderate elevation, perhaps two-fold over that of unaffected homozygotes, which is classified as<unk>  (hyper- + phenylalanine + -emia = high phe in blood).
Hyperphenylalaninemia
Hypertryptophanemia
Hypermethioninemia
Hyperammonemia
Hypervalinemia
Histidinemia
Isovaleric acidemia
Hyperlysinemia