Hormones	Normal range		Remarks
ACTH	AM 1.6–13.9 pmol/L	PM 1.6–11.1 pmol/L
Random Cortisol	193–690 nmol/L
TSH	0.25–5 mIU/L		Central hypothyroidism is confirmed if TSH level is low or normal and Free T4 is low.
FT4	11.5–22.7 pmol/L
LH	Males (20–70 y.o.) 1.5–9.3 IU/L	• Females, normal menstruation, follicular phase 1.9–12.5 IU/L • Females, normal menstruation, mid-cycle peak 8.7–76.3 IU/L • Females, normal menstruation, luteal phase 0.5–16.9 IU/L	In Females, central hypogonadism is confirmed if serum estradiol level is low and LH and FSH is either inappropriately normal or low in both premenopausal and postmenopausal women. In males, central hypogonadism is confirmed if total testosterone level is low and LH and FSH is either inappropriately normal or low as an abnormal response of the pituitary gland
FSH	Males 0.8–9 pmol/L	• Females, normal menstruation, follicular phase (− 12 to − 4) 3–12 pmol/L • Females, normal menstruation, mid-cycle peak (− 3 to + 2) 6–25 pmol/L • Females, normal menstruation, luteal phase (+ 4 to + 12) 2–12 pmol/L • Post-menopausal females 12–30 pmol/L
Estradiol	Males 43.6–146 pmol/L	• Females, normal menstruation, follicular phase (− 12 to − 4) 71.6–529.2 pmol/L • Females, normal menstruation, mid-cycle peak (− 3 to + 2) 234.5–1309.1 pmol/L • Females, normal menstruation, luteal phase (+ 4 to + 12) 204.8–786.1 pmol/L
Total Testosterone	Male • 20–49 y.o 8.64–29 nmol/L • > = 50 y.o 6.68–25.7 nmol/L	Female • 20–49 y.o 0.29–1.67 pmol/L • > = 50 y.o 0.101–1.42 pmol/L
IGF-1	54–204 ng/mL
Prolactin	Males 45–375 mIU/L	• Non-pregnant females 59–619 mIU/L • Pregnant females 206–4420 mIU/L • Post-menopausal females 38–430 mIU/L