INS and Hypoglycemia: During an episode of hypoglycemia (serum glucose 33) the patient had a suppressed insulin level of <1 μU/mL (reference: 3-25), C-peptide <0.5 ng/mL (reference: 1.1-4.3), β-hydroxybutyrate level <1.0 (reference: <3), and random cortisol of 23 (reference: morning 8-25).