Estriol, Serum
Ordering Recommendation
Screening test for fetal aneuploidy in conjunction with other biomarkers and ultrasonography. Indicator of fetal well-being and placental function.
New York DOH Approval Status
Specimen Required
Serum Separator Tube (SST).
Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.6 mL)
Refrigerated.
Plasma.
Patient gestational age required.
After separation from cells: Ambient: 72 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
Methodology
Quantitative Chemiluminescent Immunoassay
Performed
Sun-Sat
Reported
1-2 days
Reference Interval
Effective February 05, 2024
Based on gestational age: |
|
---|---|
25 weeks | 2.1 - 7.4 ng/mL |
26 weeks | 2.2 - 8.0 ng/mL |
27 - 29 weeks | 2.3 - 10.0 ng/mL |
30 - 31 weeks | 2.7 - 11.7 ng/mL |
32 - 37 weeks | 2.9 - 18.4 ng/mL |
Male | Less than 0.22 ng/mL |
Nonpregnant Female | Less than 0.20 ng/mL |
Interpretive Data
FDA
Note
Hotline History
Hotline History
CPT Codes
82677
Components
Component Test Code* | Component Chart Name | LOINC |
---|---|---|
0070052 | Estriol, Serum | 2251-7 |
Aliases
- E3
- Estriol
- UE3
- Unconjugated Estriol