Sex hormones
EstradiolE2
Primary estrogen in cycling women; informs ovarian reserve, menopausal status, IVF response.
Sample
Serum
Clinical reference range
30 to 100 pg/mL
Follicular
Conv: 30–100 pg/mL
Biology
What it measures
Aromatized from testosterone in granulosa cells, adipose, and bone.
Clinical use
Why we order it
Cycle dating, menopause confirmation (with FSH), IVF stimulation, hormone therapy monitoring.
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