Specimen Requirements
Title
Estradiol, Free (Includes Estradiol Total)
Specimen Requirement
Collect 3mL serum from plain red top or SST. Serum must be separated from cells within 45 minutes of collection. If collected in plain red top, pour off serum into plastic transport tube, and indicate tube type on specimen.
Methodology
Liquid chromatography tandem mass spectrometry (LC/MS/MS); equilibrium dialysis
Stability
Room temp 1 day, Refrigerated 6 days, Frozen 32 days
Reference Range
By Report*
Turnaround
9-12 Days
Clinical Use
Test Code
WFEST