ESTRONE

Specimen Required
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
Hemolyzed or lipemic specimens, plasma

Methodology
Radioimmunoassay

Stability
Room Temperature: Unacceptable; Refrigerated: 24 hours; Frozen: 2 months

Reference Range
Female:
   Prepubertal   <15 pg/mL  
   Pregnancy, 1st Trimester   60-715 pg/mL  
   Pregnancy, 2nd Trimester   170-1860 pg/mL  
   Pregnancy, 3rd Trimester   1040-3210 pg/mL  
   Postmenopausal with ERT*   40-345 pg/mL  
   Postmenopausal without ERT*   15-105 pg/mL  
   **Estrogen Replacement Therapy  
   Oral Contraceptives   25-85 pg/mL  
   Follicular Phase   35-140 pg/mL  
   Luteal Phase   50-115 pg/mL  
   Peri-Ovulatory   60-230 pg/mL  
Male:
   Prepubertal   <15 pg/mL  
   Adult Male   15-65 pg/mL  

Performed
Wednesday

Turnaround Time7 days
Test CodeE1
CPT-4 Code (s)
82679
LOINC Codes
2258-2

Warde
Medical
Laboratory