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We report a case of a woman with Gitelman syndrome who presented to our hospital mainly due to hyperemesis. Following her admission, intravenous potassium and magnesium supplementation was commenced to counter the observed hypokalemia and hypomagnesemia. Hyperemesis receded and although serum potassium remained low, she became asymptomatic. Oral potassium and magnesium supplementation was administered throughout pregnancy and biweekly ion level measurements were scheduled. Despite the intensive replacement, ion levels remained constantly low. She delivered at 38 weeks with an elective caesarean section because of a breech presentation, a healthy female baby weighing 3350 g. Neonatal electrolyte profile was normal.

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SummaryLatent autoimmune diabetes in adults (LADA) is a relatively new type of diabetes with a clinical phenotype of type 2 diabetes (T2D) and an immunological milieu characterized by high titers of islet autoantibodies, resembling the immunological profile of type 1 diabetes (T1D). Herein, we report a case of a young male, diagnosed with LADA based on both clinical presentation and positive anti-glutamic acid decarboxylase antibodies (GAD-abs), which were normalized after combined treatment with a dipeptidyl peptidase-4 inhibitor (DPP-4) (sitagliptin) and cholecalciferol.Learning pointsAnti-glutamic acid decarboxylase antibodies (GAD-abs) titers in young patients being previously diagnosed as type 2 diabetes (T2D) may help establish the diagnosis of latent autoimmune diabetes in adults (LADA).Sitagliptin administration in patients with LADA might prolong the insulin-free period.Vitamin D administration in patients with LADA might have a protective effect on the progression of the disease.