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Estrogens, Serum Fractionated

Estrone(E1), Estradiol(E2)

Test Codes

EPIC: LAB6028, Beaker: XFEST, MAYO: ESTFR

Department

Send Outs

Specimen Collection Criteria

Collect: One red-top tube.

Physician Office/Draw Specimen Preparation

Let specimen clot 30-60 minutes then centrifuge to separate serum from cells within 2 hours of collection. Transfer serum to a plastic transport tube and refrigerate (2-8°C or 36-46°F).

Preparation for Courier Transport

Transport: 1.2 mL serum, refrigerated (2-8°C or 36-46°F). (Minimum: 0.8 mL)

Rejection Criteria

Specimens not processed and collected as indicated.

In-Lab Processing

Let specimen clot 30-60 minutes then centrifuge to separate serum from cells within 2 hours of collection. Transfer serum to a plastic transport tube and refrigerate (2-8°C or 36-46°F).

Transport: 1.2 mL serum, refrigerated (2-8°C or 36-46°F). (Minimum: 0.8 mL)

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): 28 hours
Refrigerated (2-8°C or 36-46°F): 28 days
Frozen (-20°C/-4°F or below): 28 days

Specimen Storage in Department Prior to Disposal:

Specimen retention time is determined by the policy of the reference laboratory. Contact the Send Outs Laboratory with any questions.

Laboratory

Sent to Mayo Clinic Laboratory, Rochester, MN.

Performed

Monday – Saturday.
Results available within 2-4 days.

Reference Range

By report.

Test Methodology

Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS).

CPT Codes

82671

Contacts

Last Updated

12/8/2022