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Estradiol (E2)

E2, 17 Beta-Estradiol, Estradiol Level

Testing Information

Sample Type
Test Codes
CPT Code
Testing Area
Core Lab - Chemistry
Test Methodology
Abbott Alinity - Chemiluminescence Immunoassay
Reference Range
Female:Follicular: 21-251 pg/mLMid Cycle: 38-649 pg/mLLuteal: 21-312 pg/mLPost-menopausal: <29 pg/mLMale:11-44 pg/mL
Expected Turnaround Time
Results Available 24 hours from Receipt
Specimen Collection Criteria
Collect one gold top SST tube (minimum whole blood: 4 mL). Let specimen clot for 30-60 minutes and then centrifuge to separate serum from cells. Refrigerate after centrifugation.
Rejection Criteria
Quantity not sufficient, improperly labeled
Specimen Validity and Retention
Centrifuged SST Tubes:Room Temperature (20-25°C): 24 HoursRefrigerated (2-8°C): 7 DaysFrozen (-20°C or greater): UnacceptableSerum Aliquots:Room Temperature (20-25°C): UnacceptableRefrigerated (2-8°C): 7 daysFrozen (-20°C or greater): 7 daysSpecimens retained for 7 days after testing
Courier Transportation
Transport centrifuged tube refrigerated (2-8°C)
Clinical Utility
Estradiol is used to assess a wide range of fertility disorders.
Special Notes
This Estradiol assay should not be used for patients receiving Fulvestrant treatment. For additional questions, contact the laboratory.