| Synonyms:
| E2; Estradiol-17 Beta |
| Specimen: | Blood; (1) SST (serum separator) or Red (no preservative), or Green (Lithium Heparin) top vacutainer tube.
PLEASE NOTE: If a green top tube is submitted, not all chemistry tests can be added to this specimen type. |
| Volume: | Full primary tube |
| Minimum Volume: | 0.8 mL serum |
| Collection: | If tube other than an SST is collected, transfer serum to a tightly capped plastic aliquot tube within 2 hours of collection for transport.
Refrigerate at 2-8 °C. |
| Rejection Criteria: | Incorrrect specimen; improper labeling. |
| Reference Range: | See report |
| Methodology: | Electrochemiluminometric |
| Test Use: | Monitor ovulation induction, assess hypothalamic and pituitary function, ovarian failure |
| Additional Information: | Estradiol increases with hepatic cirrhosis. Oral contraceptives increase serum levels. |
| Testing Includes: | |
| Testing Facility: | AnMed Laboratory |