Repaglinide-induced factitious hypoglycemia

We report the first case of repaglinide-induced factitious hypoglycemia in a young male. This case posed a challenging diagnostic dilemma because comm ercial assays for repaglinide are not available. Furthermore, the patient h ad a series of positive diagnostic tests such as high proinsulin and locali zing intra-arterial calcium stimulation suggestive of insulinoma. This case , again, demonstrates the importance of pure clinical judgment in the face of often-conflicting laboratory data in making a correct diagnosis and the requirement of definitive data for an appropriate therapeutic resolution.