Sample Requirements:
SST tube. Collection timing based on menstrual cycle.
Purpose:
Evaluates estrogen status for fertility, menstrual irregularities, or menopause.
High Levels:
Ovarian tumors, liver disease, hormone therapy.
Low Levels:
Menopause, ovarian failure.
Reference Range:
Varies by cycle phase; Postmenopausal: <10–50 pg/mL