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Test Code ESTRADIOL ESTRADIOL

Important Note

24 hours before this blood test: Do not take any supplements containing biotin or Vitamin B7 which are commonly found in hair, skin, and nail supplements, and multi-vitamins.

Sufficient Biotin concentrations in serum can lead to falsely increased results.

Methodology

Competitive Chemiluminescent Immunoassay

The measurement of estradiol is useful in a variety of menstrual dysfunctions including delayed puberty, amenorrhea, and menopause. Additionally, it is useful in monitoring ovarian status of in vitro fertilization
patients.

Specimen Requirements

 

Submit only 1 of the following specimens:

 

Preferred:

Serum

Serum Gel Tube

Container/Tube: Serum gel tube(s)
Specimen Volume: 2 mL (minimum volume: 1 mL) of serum

Collection Instructions: Spin down within 4 hours of draw.

Note: Label specimen appropriately (serum).

 

Alternate:

Serum

Plain, Red-Top Tube

Container/Tube: Plain, red-top tube(s)
Specimen Volume: 2 mL (minimum volume: 1 mL) of serum

Collection Instructions: Spin down within 4 hours of draw.

Note: Label specimen appropriately (serum).

 

Alternate:

Plasma

Container/Tube: Green-top (lithium heparin) tube(s)

Specimen Volume: 2 mL (minimum volume: 1 mL) of plasma

Collection Instructions: Spin down within 4 hours of draw.

Note: Label specimen appropriately (plasma).

Day(s) Test Set Up

Monday through Friday

Available STAT on Saturday and Sunday for in vitro fertilization patients.

Reference Values

Males: 5-66 pg/mL

Females

Follicular: 27-161 pg/mL

Pre-ovulatory: 187-382 pg/mL

Luteal: 33-201 pg/mL

Postmenopausal: 5-38 pg/mL

Performing Laboratory

Logan Health Medical Center-Chemistry

Test Classification and CPT Coding

82670

Specimen Transport Temperature

Refrigerate <48 hours/Frozen >48 hours