Test Code ESTR Estradiol (E2), Serum
Methodology
Chemiluminometric Immunoassay
Performing Laboratory
Aspen Valley Hospital
Specimen Requirements
Container/Tube: Gold-top serum gel tube(s) or lithium green heparin tube
Specimen: 2 mL (minimum volume: 1 mL) of serum
Transport Temperature: Refrigerate
Collection Instructions: Allow specimen to clot for approximately 10 minutes and spin down. If drawing gold-top serum gel tube, send entire tube to laboratory. Specimens are good for 7 days refrigerated.
Reference Values
Males: 11.8-39.8 pg/mL
Females:
Untreated post-menopausal <11.8 - 32.2
Ovulating females: (by day in cycle relative to LH peak)
Follicular Phase (-12 to -4 days) 19.5 -
144.2
Midcycle (-3 to +2
days)
63.9 - 356.7
Luteal Phase (+4 to +12
days) 55.8 - 214.2
Day(s) Test Set Up
Monday through Sunday
Test Classification and CPT Coding
82670