E2 varies with menstruation: follicular 45-854, midcycle 151-1461, luteal 82-1251, post-menopausal <<18-505 (pmol/L)

New male/female E2 reference intervals 01/05/21, results unaffected.

LH varies with menstruation: follicular 2.4-12.6, midcycle 14.0-95.6, luteal 1.0-11.4, post-menopausal 7.7-58.5 (U/L)

New male/female FSH reference intervals 01/05/21, results unaffected.

FSH varies with menstruation: follicular 3.5-12.5, midcycle 4.7-21.5, luteal 1.7-7.7, post-menopausal 25.8-134.8 (U/L)"

New male/female prolactin reference intervals 01/05/21, results unaffected.

New male testosterone reference intervals 01/05/21, results unaffected.

AUH service users: new female testosterone reference interval 01/05/21.

New male progesterone reference interval 01/05/21, results unaffected.

To assess ovulation, samples for progesterone should be collected on day 21, or 7 days before end of cycle (7 days before expected bleed). Consider sequential sampling if cycle length unpredictable. Values range from 16 to 28 nmol/L as the lowest level indicative of ovulation. (NICE CG156/2013)
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