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Geisinger Medical Laboratories Test Catalog
ESTRADIOL, FREE |
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ORDERING INFORMATION: |
Geisinger Epic Procedure Code: LAB2237 Geisinger Epic ID: 47607 | |
SPECIMEN COLLECTION |
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Specimen type: |
Serum | |
Preferred collection container: |
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Specimen required: |
2.5 mL serum; minimum 1.5 mL | |
Special notes: |
Serum separator tubes NOT acceptable | |
| SPECIMEN PROCESSING |
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Specimen processing instructions: |
Centrifuge and aliquot. | |
Transport temperature: |
Refrigerated. | |
Specimen stability: |
Room temperature: 48 hours. Refrigerated: 7 days. Frozen: 2 years. | |
Rejection criteria: |
Moderate to gross hemolysis. Lipemia. Serum separator tube. | |
TEST DETAILS |
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CPT code(s): |
82670, 82681 | |
| Note: The billing party has sole responsibility for CPT coding. Any questions regarding coding should be directed to the payer being billed. The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only. | ||
Test includes: |
Free Estradiol, Estradiol | |
Methodology: |
Chromatography/Mass Spectrometry Equilibrium Dialysis |
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Synonyms: |
Quest test code 36169 ESTRF
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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 | |