Estradiol, Free, by Dialysis and Mass Spectrometry
Use to directly measure free estradiol. May be used to evaluate estradiol status for individuals with protein-binding abnormalities or individuals on hormonal contraception.
To compare this test to other estrogen tests, refer to the ARUP Estrogen Tests Comparison table.
Quantitative Equilibrium Dialysis/High Performance Liquid Chromatography-Tandem Mass Spectrometry
New York DOH Approval Status
Serum separator tube or green (sodium or lithium heparin), Red Top, Plasma Separator Tube.
Separate from cells ASAP or within 2 hours of collection. Transport 2 mL serum or plasma. (Min: 1.0 mL)
After separation from cells: Ambient: unacceptable; Refrigerated: 1 week; Frozen: 6 months
|Estradiol, Free by Dialysis||
No reference intervals have been established for prepubertal females or for cisgender males. For a complete set of all established reference intervals, refer to ltd.aruplab.com/Tests/Pub/2006160.
This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.
Laboratory Developed Test (LDT)
|Component Test Code*||Component Chart Name||LOINC|
|2006161||Estradiol, Free by Dialysis||2240-0|
- High-Sensitivity Free Estradiol