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Estriol, Serum
0070051
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Ordering Recommendation
Screening test for fetal aneuploidy in conjunction with other biomarkers and ultrasonography. Indicator of fetal well-being and placental function.
Mnemonic
EST
Methodology
Quantitative Chemiluminescent Immunoassay
Performed
Sun-Sat
Reported
1-2 days
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect
Serum Separator Tube (SST).
Specimen Preparation
Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.6 mL)
Storage/Transport Temperature
Refrigerated.
Unacceptable Conditions
Plasma.
Remarks
Patient gestational age required.
Stability
After separation from cells: Ambient: 72 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
Reference Interval
Effective November 19, 2012
| Based on gestational age: | |
|---|---|
| 25 weeks | 1.9 - 6.7 ng/mL |
| 26 weeks | 2.0 - 7.3 ng/mL |
| 27 - 29 weeks | 2.1 - 9.1 ng/mL |
| 30 - 31 weeks | 2.4 - 10.6 ng/mL |
| 32 - 37 weeks | 2.6 - 16.7 ng/mL |
| Nonpregnant Female | Less than 0.08 ng/mL |
| Male | Less than 0.16 ng/mL |
Interpretive Data
Compliance Category
FDA
Note
Hotline History
N/A
CPT Codes
82677
Components
| Component Test Code* | Component Chart Name | LOINC |
|---|---|---|
| 0070052 | Estriol, Serum | 2251-7 |
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
- E3
- Estriol
- UE3
- Unconjugated Estriol
Estriol, Serum
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