A national survey of preanalytical handling of oral glucose tolerance tests in pregnancy

While the criteria for the diagnosis of gestational diabetes mellitus (GDM) continue to be mired in controversy with a lack of international consensus, many countries and the World Health Organization have adopted the International Association of the Diabetes and Pregnancy Study Groups (IADPSG) recommendations. In addtion, revised stricter recommendations have also been produced and endorsed by the National Academy of Clinical Biochemistry (NACB) for laboratory standards in the analysis of maternal glucose measurements.