Test Code E2 Estradiol, Serum
Performing Laboratory
ChristianaCare-Newark Campus
Methodology
Electrochemiluminescent Immunoassay
Specimen Requirements
Container/Tube: Preferred: 4.5 mL Lithium Heparin (Mint Green top PST Gel) tube
Acceptable: 5.0 mL SST (Gold top) tube or 6.0 mL Serum (Red top) tube
Specimen: Full tube
Collection Instructions: For pediatrics, draw blood in a 0.5-mL green-top MICROTAINER®.
Note: Label tube with patient’s full name and 1 additional unique patient identifier such as date of birth, medical record number, emergency ID number, date and time of draw, collector’s initials, and type of specimen.
Reference Values
Males
8-43 pg/mL
Females
Pregnant, 1st trimester: 215->4,300 pg/mL
Follicular: 13-166 pg/mL
Midcycle: 86-498 pg/mL
Luteal: 44-211 pg/mL
Postmenopausal: <5-55 pg/mL
Day(s) Test Set Up
Monday through Friday
Routine Turnaround Time: 8 hours
STAT Turnaround Time: 1 hour