Friedreich Ataxia Genetic Testing (Trinucleotide Repeat Expansion)

CPT: 81284

Special Instructions

This assay is not currently available in New York state.

Expected Turnaround Time

14 - 28 days

Specimen Requirements


Whole blood


4 mL


Lavender-top (EDTA) tube

Storage Instructions

Ship ASAP, but stable up to 5 days post-collection at room temperature. Do not freeze.

Causes for Rejection

Frozen blood EDTA tube

Test Details


Friedreich ataxia is a genetic condition that affects the nervous system and causes movement problems.


Maximum reportable sizing: 1300 repeats.

This test was developed and its performance characteristics determined by LabCorp. It has not been cleared or approved by the Food and Drug Administration.


Repeat-Primed PCR (QP-PCR)

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