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Estrogens, Fractionated, LC/MS

Overview:
The body makes three main estrogens, and they dominate at different times of life. Estradiol is the most active and is the main estrogen during the reproductive years. Estrone is weaker and becomes the predominant form after menopause, produced largely in fat tissue. Estriol is made in much larger amounts during pregnancy. Measuring them separately, using liquid chromatography with mass spectrometry, shows which is present rather than reporting one combined figure that could reflect any of them. This is useful when the pattern itself is informative, such as in assessing menopausal status or unusual hormone results.
Categories:
Hormone
Biomarkers:
3 biomarkers in 2 categories

What’s measured

3 biomarkers across 2 health areas

Hormones

2 markers
  • Estradiol, Ultrasensitive (LC/MS)
  • Estrone (E1)

Pregnancy

1 marker
  • Estriol (E3)