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Test Code LAB1112 Estradiol, Plasma or Serum

Important Note

Patients treated with Mifepristone (Mifeprex) should not be tested with the Estradiol assay for up to two weeks, due to potential cross-reactivity and falsely elevated results.

Additional Codes

Test Name in EPIC EPIC Test Code Mnemonic
ESTRADIOL LAB1112 E2

 

Methodology

Chemiluminescent Microparticle Immunoassay (CMIA)

Specimen Requirements

Submit only 1 of the following specimens:

 

Preferred:

Specimen Type: Plasma

Container/Tube: Light-green top (lithium heparin gel)

 

Specimen Volume: 1 mL

Specimen Minimum Volume: 0.2 mL

Additional Information: Avoid repeated freeze/thaw cycles.

 

Alternate:

Specimen Type: Serum

Container/Tube: Serum gel

Specimen Volume: 1 mL

Specimen Minimum Volume: 0.2 mL

Additional Information: Avoid repeated freeze/thaw cycles.

Specimen Transport Temperature

Aliquot if not tested within 24 hours.

1. 　Stable for 2 days refrigerated.

2. If not tested within 2 days, specimen should be frozen. 　

Repeated freeze/thaw cycles should be avoided and specimen mixed thoroughly after thawing.

 

Day(s) Test Set Up

Monday through Sunday

Performing Laboratory

Minnesota North Dakota
SMDC Clinical Lab (Duluth) Fargo Hospital
St. Joseph's Medical Center (Brainerd)   

Test Classification and CPT Coding

82670

Reference Values

Female Normals
 15 days - <1 year:     <25 pg/mL
 1 year - <9 years:     <10 pg/mL
 9 years - <11 years:   <48 pg/mL
 11 years - <12 years:  <94 pg/mL

 Postmenopausal female: 0-59 pg/mL
   -----------------
 Ovulating Females
 Follicular:  24-145 pg/mL
 Mid Cycle:   112-443 pg/mL
 Luteal:      48-241 pg/mL
   -----------------
Male Normals:  0-52 pg/ml