The latest Royal College of Obstetricians and Gynaecologists guidance for diagnosis of gestational diabetes mellitus (GDM) recommends avoiding the 'gold standard' 2-h oral glucose tolerance test (OGTT) for the duration of the COVID-19 pandemic [1]. To avoid prolonged waiting in large groups the suggested alternative diagnostic pathway involves four simpler tests, in women at greater risk of developing GDM according to the National Institute for Health and Care Excellence (NICE) checklist.