A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Estradiol, Free
Test Code36169
Alias/See Also
LAB00173
ESD FREE
EST FREE
ESD FREE
EST FREE
CPT Codes
82670, 82681
Includes
Estradiol, Free and Estradiol, Ultrasensitive, LC/MS
Preferred Specimen
1 mL serum collected in a red-top tube (no gel)
Minimum Volume
0.5 mL
Instructions
Specify age and sex on test requisition
Transport Container
Transport tube
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
Room temperature: 24 hours
Refrigerated: 7 days
Frozen: 28 days
Refrigerated: 7 days
Frozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis • Lipemia • Serum separator tube (SST) • Grossly icteric
Methodology
Chromatography/Mass Spectrometry • Equilibrium Dialysis
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Setup Schedule
Mon, wed
Report Available
3-9 days
Reference Range
See Laboratory Report
Clinical Significance
Much of Estradiol is bound to proteins. The unbound portion and Estradiol bound to proteins with low affinity reflect the free concentration. The Free Estradiol may better correlate with medical conditions than the Total Estradiol concentrations.
Performing Laboratory
Quest Diagnostics Nichols Institute-San Juan Capistrano, CA |
33608 Ortega Highway |
San Juan Capistrano, CA 92675-2042 |