A 45-year- old woman was brought to the emergency room because of severe confusion. PMH: She has a 3-year history of psychiatric illness, manifested as abnormal behaviour. There is no history of diabetes mellitus. Physical Examination: Her physical examination is unremarkable, except for mild obesity.
Her BP is 110/65 mmHg and her pulse rate is 92 beats per min. Her confusion improves following IV glucose. Laboratory Results (the following morning): Plasma glucose: 39 mg/dl Serum insulin: 25 µU/mL Serum C-peptide: 2.8 ng/mL What would be the possible diagnosis for this case? *This case is from the Docplexus Editorial Team and is meant for educative purpose only.
