Estradiol


Abbrev Code:E2   
Order Code:LAB523Order Name:Estradiol
Synonyms:E2; Estrogen
Methodology:Chemiluminescence
St Joseph: CMIA
CPT Codes: 82670 x1
Turnaround Time:Performed and reported 24 hours/day.
Special Instructions:Specimens collected on prepubertal children during an LHRH stimulation test and all males and post-menopausal females should be ordered as E2S Ultrasensative Estradiol.


Collection Instructions

Specimen:Blood
Optimal Volume:2.5 mL
Minimum\Peds Volume:0.6 mL
Container:Green (lithium heparin, gel), Red or gold (gel), St Johns/St Joseph/Woodwinds-Green (lithium heparin, no gel)
Alternate Containers: Purple (EDTA), Red (no gel), St Johns/St Joseph/Woodwinds - Red (no gel)
Contraindications:Large doses of biotin (10 mg or more per day) may cause clinically significant interference in estradiol levels. If interference is suspected, it is strongly recommended that biotin is discontinued for at least one week prior to retesting.


Processing and Shipping

Specimen Processing:Centrifuge and aliquot 1.25 mL, 0.2 mL minimum. Store in refrigerator up to 2 days. Alternately freeze..
Shipping Instructions:Ship at refrigerated temperature to arrive within 2 days. Alternatively, ship on dry ice.
Stability:Stability: Refrigerated - 2 days; frozen - indefinitely.
Test Performed at or Referral Lab Chemistry  (UMMC-East Bank, Grand Itasca, St. Joseph's)


Interpretive

Reference Range:

Female

pg/mL

Follicular

20-144

Mid-Cycle

64-357

Luteal

56-214

Post menopausal females (untreated

Not determined – 32.2

Ultrasensitive estradial (ES2) recommended.

Males

Not determined – 39.8

Ultrasensitive estradial (ES2) recommended.

 

 

Use:For evaluation of ovarian function in women.


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