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HelpEpic Test Code LAB3076 Estradiol (E2 or 17- Beta Estradiol)
Performing Location(s)
BMC
Specimen Type
Serum
Preferred Container
Gold or Red top tube
Alternate Container
Light Green top tube
Blood Tube Draw Volume
Min 50% draw volume
Minimum Volume to Submit for Testing
1.0 mL Serum
- Multiple test can be performed from this volume. For question please contact the lab at 607-547-3975.
Storage Requirements
Sample tubes should be centrifuged within 2 hours of collection
Gold tops DO NOT ALIQUOT
Aliquot Red tops
See Causes of Rejection for temperature requirements.
Transportation Needs
Deliver specimen to laboratory within 1 hour of collection if unspun. If not possible see "storage Requirements".
Causes for Rejection
Mislabeled or unlabeled specimen
Less than 50% draw for Vacutainer tubes
Serum > 8 hours room temperature
Serum > 7 days Refrigerated
Hemolysis > 300 mg/dL HgB
Lipemia > 3000 mg/dL Trig
Bilirubin > 40 mg/dL Bili
Limitations
Heterophile antibodies in human serum can react with reagent immunoglobulins interfering with in vitro immunoassays.
High levels of endogenous alkaline phosphatase or rheumatoid factor may interfere.
Reference Values
|
Population |
Normal Reference Range |
Units |
|
Males |
||
|
Males |
< 15 |
pg/mL |
|
Females > 19 years old |
||
|
Follicular |
22-115 |
pg/mL |
|
Luteal |
36-246 |
pg/mL |
|
Mid-Cycle |
32-517 |
pg/mL |
|
Post-Menopausal |
< 30 |
pg/mL |
|
Females ≤ 19 years old |
||
|
1-11 years old |
<15-20 |
pg/mL |
|
12-19 years old |
162-230 |
pg/mL |
Note: Patients taking Fulvestrant (Faslodex®) may exhibit elevated estradiol results due to assay cross-reactivity with this drug. Such patients should be tested with an LC-MS chromatographic method.
Days of Analysis
All
Available STAT
Yes
Additional Information
Serum specimens are good for 1 week if stored at refrigerated temperature ( 2-8 degrees centigrade)
Methodology
Competitive Immunoassay using direct chemiluminescent technology
CPT Code
82670
Last Updated
29-NOV-24 MS