Blood tests measure the total circulating amount of the most powerful oestrogen, called oestradiol.
Blood: less than 150–200pmol/L in menopausal women not receiving any HRT.
Progesterone
Blood tests measure the total circulating amount of Progesterone, and not the free active component.
Blood: less than 3nmol/L in menopausal women not receiving any HRT.
Cortisol
Blood tests measure the total circulating amount of cortisol. Cortisol is made in the adrenal glands. Normally the levels of Cortisol are higher in the early hours of the day.
TSH is a pituitary hormone which becomes elevated if the thyroid gland is underactive.
Blood: 0.3 to 5.0 mIU/L
Free T 4
This blood test measures the circulating amount of the free T4 hormone. The free component is the active hormone.
Blood: 9.0 to 24.0 pmol/L
Free T 3
This blood test measures the circulating amount of the free T3 hormone. The free component is the active hormone.
Blood: 2.2 to 5.4 pmol/L
FSH
FSH is a pituitary hormone which becomes elevated once the menopause arrives.
Blood: 30 to 280 U/L in menopausal women not on any HRT
Free Androgen Index (FAI)
This is a very useful blood test. The FAI measures the total amount of all the free androgens circulating in the bloodstream. This test accurately measures the activity of the male hormones in the body.The FAI may be elevated even if the levels of testosterone are normal, and provides a more accurate assessment of excess androgen activity in the body than measuring testosterone does.
Blood – 1 to 8 %
Testosterone
Measures the total amount of testosterone in the blood.
Blood – less than 1.0 to 4.5nmol/L
Sex Hormone Binding Globulin (SHBG)
Measures the amount of globulin protein in the blood that binds the sex hormones.
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