Oral contraceptives are associated with very low levels pregnancy is associated with very high levels.
The assay is specific for oestradiol. Other oestrogens such as ethinyl oestradiol conjugated equine oestrogens (premarin) are not detected. Oestradiol is the major endogenous oestrogen in ovulating women. It rises to a pre-ovulatory peak mid-cycle, falls and then returns to a luteal phase plateau before falling again prior to menstruation. Indications for estimating oestradiol are strictly
It is not used during the early investigation of infertility, for diagnosing menopause,
for monitoring HRT (hormone replacement therapy), or for investigating irregular
Please Note; assay interference from the drug fulvestrant (Faslodex®) may cause falsely elevated estradiol results.
Can be added on to an existing request up to 4 days following sample receiptSpecimen Labelling Procedure