Estradiol
Test code
CPT code(s)*
Clinical significance
Test resources
Details
Methodology
Immunoassay (IA)
Alternative name(s)
17-Beta-Estradiol,E2 IVF,IVF Estradiol,Estradiol (E2-6 III),Estradiol, 17 Beta
Specimen requirements | |
|---|---|
| Patient preparation | None Specified |
| Preferred specimen(s) | 1 mL serum |
| Minimum volume | 0.5 mL |
| Collection instructions | Note: For any patients for whom low estradiol levels are anticipated (e.g. males, pre-pubertal children and hypogonadal/post-menopausal females), the Quest Diagnostics Estradiol, Ultrasensitive, LC/MS/MS assay is recommended (test code 30289). Do not add on estradiol testing to a barrier gel specimen older than 72 hours. Estradiol binds to barrier gel causing decreased values. |
| Transport container | Serum separator tube (SST) |
| Transport temperature | Room temperature |
| Specimen stability | Room temperature: 7 days Refrigerated: 7 days Frozen: 6 months Do not add estradiol testing to a barrier gel specimen older than 72 hours |
| Reject criteria | Serum stored on barrier gel for more than 72 hours |
Reference Range(s)
| Female | ||||||
| Follicular Phase | 30-144 pg/mL | |||||
| Mid-Cycle | 64-357 pg/mL | |||||
| Luteal Phase | 56-214 pg/mL | |||||
| Postmenopausal | ≤31 pg/mL | |||||
| Male | ≤39 pg/mL | |||||
Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.
*The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.
This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.
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