Endocrine Abstracts

A 58-year-old non-diabetic Caucasian man was admitted with a capillary glucose of 1.9 mmol/l following an episode of confusion and disorientation. During his admission he had frequent episodes of nocturnal and early morning hypoglycaemia with capillary glucose <3.0 mmol/l. After 21 h of supervised fasting he was symptomatic with plasma glucose 2.3 mmol/l, insulin >1000 mU/l and C-peptide 19.6 μg/l. Sulphonylurea screen was negative. Given the magnitude of serum in...