Insulin Autoimmune Syndrome in a 25-Year-Old, Previously Healthy Kuwaiti Man

Table 1

Results of 72-hour fasting test.

Symptoms of hypoglycaemia	Yes
Glucose (reference range 3.9–6.1 mmol/L)	2.4 mmol/L
Insulin (reference range 1.9–23 uIU/ml)	>301 uIU/mL
C-peptide (reference range 33–1458 pmol/L)	681 pmol/L
Proinsulin (reference range <11.0 pmol/L)	2.7 pmol/L
Beta-hydroxybutyrate (reference range 30–300 mmol/L)	27.8 mmol/L
Circulating oral hypoglycaemic agents	Not available
Antibodies to insulin IgG (reference range 0–10 IU/ml) by enzyme-linked immunosorbent assay (ELISA)	>100.0 IU/mL