The Estriol (E3) Test checks blood levels of estriol, an estrogen hormone important in pregnancy. It is commonly included in the second-trimester triple or quad screen to detect chromosomal disorders such as Down syndrome and assess placental function. Estriol testing helps monitor fetal growth and maternal hormone health. Low or abnormal levels may signal pregnancy complications, guiding further testing and prenatal care decisions.

 The Estrogen Dominance Panel for Non-Cycling Women is designed to evaluate the balance of estrogen and progesterone levels in women who are not menstruating, whether due to menopause, surgical removal of reproductive organs, or other health conditions. This panel is crucial for assessing hormonal status and addressing symptoms related to hormonal imbalances, which can significantly impact a woman's quality of life and overall health.