Estradiol Free, Equilibrium Dialysis, With Total Estradiol, HPLC/MS‑MS (Endocrine Sciences)

Clinical Use

Use

This test provides measurement of both free estradiol via equilibrium dialysis and total estradiol using HPLC‑MS/MS, offering a comprehensive assessment of bioactive hormone levels in serum, aiding in evaluation of endocrine function.

Special Instructions

Not provided.

Limitations

Not provided.

Test Details

Methodology

Mass Spectrometry

Biomarkers

Estradiol, Free Serum

Analyte

Estradiol, Free Serum

Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)

Free Estradiol, Percent

Analyte

Free Estradiol, Percent

Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)

Free Estradiol, Serum

Analyte

Free Estradiol, Serum

Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)

LOINC Codes

Order Codes

2240-0 - Estradiol Free SerPl-mCnc
500431
500432
502608

Result Codes

35384-7 - Estradiol SerPl HS-mCnc
14960-9 - Estradiol Free MFr SerPl
2240-0 - Estradiol Free SerPl-mCnc

Result Turnaround Time

9-12 days

Specimen

Serum

Volume

3 mL

Minimum Volume

1 mL

Container

Gel‑barrier tube or red‑top tube

Collection Instructions

Serum must be separated from cells within 45 minutes of venipuncture. Send serum in a plastic transport tube. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.