Case Report
Insulin Autoimmune Syndrome in a 25-Year-Old, Previously Healthy Kuwaiti Man
Table 2
Other laboratory investigations.
| Test | Result | Reference range |
| Haemoglobin A1c | 5.1% | Nondiabetic (<5.7%) | Anti-GAD Ab | Negative | 0–10 IU/mL | Anti-IA2 Ab | Negative | 0–10 IU/mL | Anti-islet cells Ab | Negative | 0–10 IU/mL | Insulin-like growth factor 1 (IGF-1) | 33 | 29–85 nmol/L (adults 20–30 years) | Cortisol morning | 467 | 185–624 nmol/L | Cortisol evening | 255 | 150–276 nmol/L | Adrenocorticotropic hormone (ACTH) | 42.3 | 10–46 pg/mL | LH | 0.7 | 1.24–8.68 IU/L | FSH | 1.6 | 1.27–19.26 IU/L | Prolactin | 317 | 57–281 mIU/L | Total testosterone | 4.2 | 6.1–27.1 nmol/L |
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