GPT and diabetic ketoacidosis: After one of the admissions for diabetic ketoacidosis, transaminases were temporarily increased: aspartate aminotransferase (AST) 1,218 U/L (reference range (RR): 13–26 U/L) and alanine aminotransferase (ALT) 650 U/L (RR: 9–24 U/L); gamma-glutamyl transferase (GGT) and alkaline phosphatase (AP) were only mildly elevated.