ESTRADIOL

Test Documentation
Specimen Required
The manufacturer has confirmed the drug Fulvestrant may cause elevated results. For patietns being treated with Fulvestrant an alternate method such as LC/MS should be used to measure estradiol. Please contact lab for alternate test information.
Draw blood in a SST. Centrifuge, separate and send 1.0 mL serum (0.5 mL minimum) frozen in a screw-capped plastic vial.

Alternate Specimen
Serum: Red-top

Rejection Criteria
Grossly lipemic specimens, plasma

Methodology
Chemiluminescence

Stability
Room Temperature: 8 hours; Refrigerated: 2 days; Frozen: 2 months

Reference Range
Adult Male:   <57 pg/mL  
Adult Female:
   Follicular Phase:   <161 pg/mL  
   Follicular Phase (days 2 to 3):   <85 pg/mL  
   Periovulatory (±3 days):   34-400 pg/mL  
   Luteal Phase:   27-246 pg/mL  
   Untreated Postmenopausal:   <31 pg/mL  
   Treated Postmenopausal:   <94 pg/mL  
   Oral Contraceptives:   <103 pg/mL  

Performed
Monday-Friday

Turnaround Time3 days
Test CodeE2
CPT-4 Code (s)
82670
LOINC Codes
2243-4

Warde
Medical
Laboratory