Figure 6. Comparative data in 37 patients with diabetic ketoacidosis with regard to plasma acetoacetic acid (AA) and -hydroxybutyric acid ( OH) (top left); ratio of AA to OH (bottom left); and ketone bodies (nitroprusside reaction) in the urine (top right) and plasma (bottom right) before and during low-dose intravenous infusion of insulin for 48 hours. Reproduced with permission from Reference [ 146 ].