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Estradiol, Free : 36169
Test CodeESTDFQ or 36169
CPT Codes
82670, 82681
Includes
Panel includes Free Estradiol and Estradiol.
Instructions
Plain red.
Transport Container
Centrifuge plain red and aliquot 2.5 mL (Min: 1.5 mL) serum into a standard transport tube.
Transport Temperature
Refrigerated.
Specimen Stability
Ambient: 24 hours; Refrigerated: 7 days; Frozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Serum Separator Tube (SST), hemolysis, grossly icteric, lipemia
Methodology
Chromatography/Mass Spectrometry, Equilibrium Dialysis, Radioimmunoassay
Setup Schedule
Monday & Wednesday
Report Available
3-9 days (From receipt at performing laboratory)
Reference Range
Estradiol, Free
Female
Follicular Stage 0.43-5.03 pg/mL
Luteal Stage 0.40-5.55 pg/mL
Postmenopausal less than or equal to 0.38 pg/mL
Adult Male less than or equal to 0.45 pg/mL
Estradiol
Female
Follicular Stage 39-375 pg/mL
Luteal Stage 48-440 pg/mL
Postmenopausal less than or equal to 10 pg/mL
Adult Male less than or equal to 29 pg/mL
<1 year male/female not established
Male 1-9 years less than or equal to 4 pg/mL
Female 1-9 years less than or equal to 16 pg/mL
Male 10-11 years less than or equal to 12 pg/mL
Female 10-11 years less than or equal to 65 pg/mL
Male 12-14 years less than or equal to 24 pg/mL
Female 12-14 years less than or equal to 142 pg/mL
Male 15-17 years less than or equal to 31 pg/mL
Female 15-17 years less than or equal to 283 pg/mL
Female
Follicular Stage 0.43-5.03 pg/mL
Luteal Stage 0.40-5.55 pg/mL
Postmenopausal less than or equal to 0.38 pg/mL
Adult Male less than or equal to 0.45 pg/mL
Estradiol
Female
Follicular Stage 39-375 pg/mL
Luteal Stage 48-440 pg/mL
Postmenopausal less than or equal to 10 pg/mL
Adult Male less than or equal to 29 pg/mL
<1 year male/female not established
Male 1-9 years less than or equal to 4 pg/mL
Female 1-9 years less than or equal to 16 pg/mL
Male 10-11 years less than or equal to 12 pg/mL
Female 10-11 years less than or equal to 65 pg/mL
Male 12-14 years less than or equal to 24 pg/mL
Female 12-14 years less than or equal to 142 pg/mL
Male 15-17 years less than or equal to 31 pg/mL
Female 15-17 years less than or equal to 283 pg/mL
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
