Synonyms: E2; Estradiol-17 Beta

Why It Is Done

* Investigation of fertility of women of reproductive age.*Support of in vitro fertilization.*Evaluate estrogen-producing tumors of the ovaries in girls before menstruation starts and in women after menopause. *Explain abnormal sexual characteristics in men.* Monitor therapy with fertility medications, such as Gonal-F, Follistim, or Repronex

Test Overview

Estradiol is the most commonly measured type of estrogen for nonpregnant women. The amount of estradiol in a woman's blood varies throughout her menstrual cycle. After menopause, estradiol production drops to a very low but constant level.

How To Prepare

No special preparation is required