Test Overview

Test Methodology

Repeat Expansion

Test Usage

Detects CAG triplet repeat expansion in the androgen receptor gene.

Reference Range*

11-33 CAG trinucleotide repeats

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details

Analytic Time

3 - 4 weeks

Soft Order Code




Laboratory Reference

Athena Diagnostics 117

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Specimen Requirements

Offsite Collection Instructions

Collect specimen in sufficient lavender top tubes. Send intact whole blood room temperature.


Lavender Top Tube

Normal Volume

8 mL EDTA whole blood

Minimum Volume

6 mL EDTA whole blood

Additional Information

Test sent to Athena Diagnostics.

Billing Information

Fee Codes

CPT Code


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