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