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St. John Health System
Lab Catalog


Index:

Estriol, Serum

Order Name ESTRIOL
Test Number: 3801500
Revision Date 12/12/2022
Test Name Methodology LOINC Code
Estriol, Serum
Immunochemiluminometric (ICMA) 2251-7 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1 mL (0.3) Serum Clot Activator SST Refrigerated
Instructions Notes: 0.3 mL (Note: This volume Does NOT allow for repeat testing.)
Specimen Type: Red-top tube or gel-barrier tube
Specimen Storage: Refrigerate
Specimen Collection: If red-top tube is used, transfer separated serum to a plastic transport tube. All specimens should be drawn at the same time of day to allow comparison of values.
Special Instructions: State weeks of gestation on the request form. Usually done as serial measurement.
Specimen Stability: Ambient: 14 days, Refrigerated : 14 days, Frozen: 14 days
GENERAL INFORMATION
Expected TAT 2 - 4 days 
Notes Labcorp Test Code: 004614
CPT Code(s) 82677
Internal Comments (Note: SST GEL TUBES and AMNIOTIC FLIUID - No Longer Acceptable! 6-14-2010)
10/18/17 add link up su - JK
12/10/18 Updated methodology and stability - SN
3/26/19 added loinc code
Service Provided By Labcorp Oklahoma, Inc.
Lab Section Reference Lab