Prenatal Diagnosis Papers Prenatal Diagnosis of propionic acidemia – JAMA Rapid and sensitive method for prenatal diagnosis of propionic acidemia using stable isotope dilution gas chromatography-mass spectrometry and urease pretreatment. Prenatal diagnosis of propionic acidemia. Feasibility of DNA based methods for prenatal diagnosis and carrier detection of propionic acidaemia Prenatal Diagnosis of propionic acidemia by measuring methylcitrtic acid in dried amniotic fluid on filter paper using GC/MS.