INS and gestational diabetes: However, when considering the management strategy outlined in national guidelines for GDM in high income countries including the UK, US, Australia and Canada, this is perhaps explained.135, 134, 136, 137 Women diagnosed with GDM in these settings receive extra antenatal appointments, ultrasound scans, dietary counselling, regular blood glucose monitoring and medications such as metformin and insulin to control blood glucose levels if diet control is insufficient.