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Estriol, LC/MS/MS, serum

Lab Section:  Sendout Reference  
Lab Location:  Sendout
Reference Lab: Quest 
Test ID: LAB5403 
Methodology: Liquid Chromatography Tandem Mass Spectrometry (LC/MS/MS)
Schedule: Monday-Thursday by noon
Reported: 7 days
Specimen Requirements:  Collection: 3.0 mL Blood in a Red Top Tube.
Pediatric volume: 1 mL.
No SST tubes
Transport: Refrigerated (cold packs).
Unacceptable conditions: Received room temperature • Amniotic fluid • Serum Separator Tube (SST®)
Stability: Room temperature: 24 hours Refrigerated: 7 days Frozen: 2 years


Clinical Indications: 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.

Reference Interval:  See patient report or consult reference laboratory website.
CPT Code(s): 82677
Last Changed: 10/28/2016 15:07:26
Last Reviewed: 11/20/2016 22:50:11