Estradiol
| Alternate Names | 17-Beta Estradiol |
| Ordering Recommendation | Useful for the assessment of hypothalmic and pituitary function, ovarian function, and monitoring follicular development for assisted reproduction protocols. In males, estradiol may be helpful in the investigation of unexplained gynecomastia. |
| Specimen | Serum |
| Container Type | Red/Yellow Top Tube
|
| Methodology | Chemiluminescence |
| Reference Range | Male: ≤39.8 pg/mLFemale: Follicular: 19.5-144.2 pg/mL Midcycle: 63.9-356.7 pg/mL Luteal: 55.8-214.2 pg/mL Postmenopausal: ≤32.3 pg/mL |
| Stability | 7 days |
| Transport Temp | Refrigerate 2°-8° C |
| Instructions | Steroid-based medications with similar chemical structures to estradiol can potentially lead to cross-reactivity; results from patients taking these medications should be reviewed along with the patient’s clinical history. |
| Days Performed | Daily |
| Report Available | 1 day |
| NY State Available | Yes |
| LOINC | 2243-4 |
| CPT Code | 82670 |
