7 - 14 days
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Amplification of DNA to evaluate trinucleotide repeats.
To confirm the diagnosis of Huntington\'s disease or in the evaluation of related neurodegenerative disorders through the analysis of the allele size of the CAG repeat in the Huntington gene.
Normal (10-26 repeats), premutation (27-35 repeats) or affected (36 repeats or greater). Interpretive report provided.
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Collect specimen in a yellow top (ACD) solution A (preferred) or lavender top tube. Send intact specimen refrigerated. Specimen must be accompanied by patient consent form available from MLabs. Both symptomatic and presymptomatic testing requires a signed informed consent form. Patient must be at least 18 years of age.