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Androstenedione

Test Codes

MAYO: ANST, EPIC: LAB5941, SOFT: XADSN

Department

Send Outs

Specimen Collection Criteria

Collect: One plain Red-top tube.

• Do not use Serum Separator Tubes.
• Send specimen for processing immediately after collection.

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).

Preparation for Courier Transport

Transport: 0.6 mL serum, refrigerated (2-8°C or 36-46°F). (Minimum: 0.25 mL)

Rejection Criteria

• Grossly hemolyzed specimens.
• Grossly lipemic specimens.
• Serum Separator (SST) tubes.
• Specimens not collected or processed as indicated.

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).

Transport: 0.6 mL serum, refrigerated (2-8°C or 36-46°F). (Minimum: 0.25 mL) 

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): 7 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 – Friday.
Results available in 3-6 days.

Reference Range

By report.

Test Methodology

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

Interpretation

By report.

Clinical Utility

This assay is useful in the evaluation of androgen production in hirsute females.

CPT Codes

82157
LOINC:  1854-9

Contacts

Last Updated

7/6/2021