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Estrone, Serum

Test Codes

EPIC: LAB6016, Beaker: XESTR, Mayo: E1

Department

Send Outs

Specimen Collection Criteria

Collect (do not use SST): One plain Red-top tube.

Physician Office/Draw Specimen Preparation

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

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 collected and processed as indicated.
• Specimens collected in SST tubes.

In-Lab Processing

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

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 days
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 Medical Laboratories, Rochester, MN.

Performed

Monday – Saturday.
Results are available in 3-5 days.

Reference Range

By report.

Test Methodology

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

Interpretation

By report.

Clinical Utility

This assay is used for the evaluation of gonadal hypofunction in females, timing of ovulation, sexual precocity or developmental aberration in children, and hormonally active tumors.

CPT Codes

82679

Contacts

Last Updated

10/2/2023