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Test Code Z0900 Estriol, Unconjugated, Serum

Additional Codes

Mayo Test ID
UE3

Reporting Name

Estriol, Unconjugated, S

Useful For

A part of second trimester or cross-trimester biochemical screening for Down syndrome and trisomy 18 syndrome

 

A marker of fetal demise

 

An adjunct biomarker in the prenatal diagnosis of disorders of fetal steroid metabolism, including Smith-Lemli-Opitz syndrome (SLO)(3-4), and X-linked ichthyosis (placental sulfatase deficiency disorders)

 

Evaluating primary or secondary fetal adrenal insufficiency after excluding other rare single gene defects, including aromatase deficiency, 17 alpha-hydroxylase deficiency and/or various forms of congenital adrenal hyperplasia

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Serum


Specimen Required


Container/Tube:

Preferred: Red top

Acceptable: Serum gel

Specimen Volume: 0.6 mL


Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Refrigerated (preferred) 14 days
  Frozen  90 days

Reference Values

Males: <0.07 ng/mL

Females: <0.08 ng/mL

 

For SI unit Reference Values, see https://www.mayocliniclabs.com/order-tests/si-unit-conversion.html

Day(s) and Time(s) Performed

Monday through Friday; 8 a.m.-12 a.m.

Saturday; 9 a.m.-5 p.m.

Test Classification

This test has been cleared or approved by the U.S. Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information

82677

LOINC Code Information

Test ID Test Order Name Order LOINC Value
UE3 Estriol, Unconjugated, S 2250-9

 

Result ID Test Result Name Result LOINC Value
UE3 Estriol, Unconjugated, S 2250-9

Method Name

Immunoenzymatic Assay