Test Code LAB523 Estradiol
Performing Lab
Arnot Ogden Medical Center
Ordering Recommendations
-Evaluation of hypogonadism and oligo-amenorrhea in females
-Assessing ovarian status, including follicle development, for assisted reproduction protocols (eg, in vitro fertilization)
-In conjunction with lutenizing hormone measurements, monitoring of estrogen replacement therapy in hypogonadal premenopausal women
-Evaluation of feminization, including gynecomastia, in males
-Diagnosis of estrogen-producing neoplasms in males, and, to a lesser degree, females
-As part of the diagnosis and work-up of precocious and delayed puberty in females, and, to a lesser degree, males
-As part of the diagnosis and work-up of suspected disorders of sex steroid metabolism, eg, aromatase deficiency and 17 alpha-hydroxylase deficiency
-As an adjunct to clinical assessment, imaging studies and bone mineral density measurement in the fracture risk assessment of postmenopausal women, and, to a lesser degree, older men
-Monitoring low-dose female hormone replacement therapy in post-menopausal women
-Monitoring antiestrogen therapy (eg, aromatase inhibitor therapy)
Collect
Heparinized Plasma or Serum
Collection Device
Green or Gold Top Tube
Specimen Volume
5 mL
Stability (from collection to initiation)
Room Temp | 8 Hours |
Refrigerated | 48 Hours |
Frozen | Indefinite |
Storage/Transport Temperature
Room Temp, Refrigerated, Frozen
Specimen Handling
Centrifuge within 2 hours of collection.
Minimum Requirements
0.5 mL
Methodology
Chemiluminescence Immunoassay
Start Date
1/27/20
Remarks
TURN AROUND TIME
STAT | 1 Hour |
Routine | 8 Hours |
Last Review Date
7/19/25 ES