DOI: 10.1373/clinchem.2013.214676


A 39-year-old man with type 1 diabetes mellitus (DM) was admitted with diabetic ketoacidosis precipitated by an upper respiratory tract infection. His admitting biochemistry showed venous plasma glucose concentration of 933 mg/dL (51.8 mmol/L) [reference: 72–140 mg/dL (4.0–7.8 mmol/L)], bicarbonate of 14.7 mmol/L (22–31 mmol/L), β-hydroxybutyrate of >6 mmol/L (<0.6 mmol/L), and arterial pH of 7.28 (7.35–7.45). He was treated with intravenous hydration and intravenous insulin infusion, and made a rapid recovery.