Liquid chromatography tandem mass spectrometry (LC/MS/MS); equilibrium dialysis; immunoradiometric assay (IRMA)
Estradiol, Free, Serum
Free Estradiol, Serum
Serum Red
Draw blood in a plain red-top tube (serum gel tube is acceptable). Spin down, pour off into plastic vial within 45 minutes of collection, and send 3 mL serum frozen.
1.0 mL Note: This volume does not allow for repeat testing.
Hemolysis | NA |
Lipemia | NA |
Icterus | NA |
Other | Plasma |
Specimen Type | Temperature | Time | Special Container |
---|---|---|---|
Serum Red | Frozen (preferred) | 180 days | |
Ambient | 48 hours | ||
Refrigerated | 48 hours |
Estradiol, Serum
Age Range
Newborn
Levels are markedly elevated at birth and fall
Males <6 m
Levels increase to 10 - 32 between 30 and 60
Females <1 y
Levels increase to 5.0 - 50 between 30 and 60
Prepubertal <15
Adult Males 8.0 - 35
Adult Females
Follicular 30 - 100
Luteal 70 - 300
Postmenopausal <15
Free Estradiol, Percent
Age Range
Adult Males 1.7 - 5.4
Adult Females 1.6 - 3.6
Free Estradiol, Serum
Units: pg/mL
Age Range
Adult Males 0.2 - 1.5
Adult Females 0.6 - 7.1
Sex Hormone Binding Globulin
Age Range
Infants (1 - 23m) 60.0 - 252
Prepubertal 72.0 - 220
Pubertal
Males 16.0 - 100
Females 36.0 - 125
Adult
20 - 49 y 16.5 - 55.9
>49y 19.3 - 76.4
Adult Females
20 – 49y 24.6 - 122.0
>49y 17.3 - 125.0
Varies
This test was developed and its performance characteristics determined by LabCorp. It has not been cleared or approved by the Food and Drug Administration.
82681 – Free Estradiol
84270 - Sex Hormone binding globulin
82670 - Estradiol
Test Id | Test Order Name | Order LOINC Value |
---|---|---|
FFES | Free Estradiol with SHBG | Not Provided |
Result Id | Test Result Name |
Result LOINC Value
Applies only to results expressed in units of measure originally reported by the performing laboratory. These values do not apply to results that are converted to other units of measure.
|
---|---|---|
Z0228 | Free Estradiol, Percent | 14960-9 |
Z0229 | Free Estradiol, Serum | 2240-0 |
Z0230 | Sex Hormone Binding Globulin (SHBG) | 13967-5 |
Z0259 | Estradiol, Serum | 35384-7 |