Neonatal Screening hTSH PKU  T.gondii IgM 17-OH-Progesterone G-6-PD Galactose All Products   ProductsNeonatal Screening PKU PKU, 960 wells (6199896) and 4800 wells (6199897) Neonatal Phenylalanine is a chemical screening test with quantitative fluorometric determination of phenylalanine (Phe) from dried blood spot samples for the detection of phenylketonuria (PKU). read more User Manual for PKU Neonatal brochure