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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