Estrogens, Total
Use
Evaluate for ovarian estrogen producing tumor in the premenarcheal and postmenopausal female; evaluate estrogen excess in males. Estrogen analysis may be helpful in establishing time of ovulation and optimal time for conception. Serial samples must be collected over several days to evaluate baseline and peak total estrogen levels.
Special Instructions
Serial samples must be collected over several days to evaluate baseline and peak total estrogen levels. If a red-top tube or any other tube besides a gel-barrier tube is used, it is essential to transfer the separated serum to a plastic transport tube for safe handling.
Limitations
Test results can be affected by gross hemolysis, lipemia, and icteric specimens, which may lead to incorrect assessments of estrogen levels. The volume requirements specify that 0.5 mL of serum is the minimum, which may not allow for repeat testing if necessary.
Methodology
Immunoassay (ELISA)
Biomarkers
LOINC Codes
- 2254-1
- 2254-1
Result Turnaround Time
1-4 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
0.8 mL
Minimum Volume
0.5 mL
Container
Red-top tube or gel-barrier tube
Collection Instructions
If tube other than a gel-barrier tube is used, transfer separated serum to a plastic transport tube.
Storage Instructions
Room temperature
Causes for Rejection
Gross hemolysis; gross lipemia; icteric specimen
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 7 days |
| Refrigerated | 14 days |
| Frozen | 14 days |