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ESTRIOL,SERUM

 
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Description
 

CPT Code(s)

82677

Methodology

Liquid Chromatography Tandem Mass Spectrometry (LC/MS/MS)

Reference Range(s)

Adult Male≤0.18ng/mL
Adult Female (Non-pregnant)≤0.21ng/mL
Pregnancy
First trimester≤2.50ng/mL
Second trimester≤9.60ng/mL
Third trimester≤14.60ng/mL

Clinical Significance

The placenta converts DHEA-S produced by the fetal adrenals to Estriol and other estrogens. Estriol is useful in assessing the fetal adrenals and placenta during pregnancy. More commonly, Estriol is one of the maternal serum biochemical markers used to screen for common chromosomal trisomies, especially Down syndrome.


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