Type 2 myotonic dystrophy results from a mutation in the CNBP gene known as a tetranucleotide repeat expansion. This mutation increases in size of the repeated CCTG segment in the CNBP gene. People with type 2 myotonic dystrophy have from 75 to more than 11,000 CCTG repeats.

Maximum reportable sizing: 373 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.

Lavender (EDTA), 4mL

Immediately following collection, mix sample thoroughly by gently inverting 8 - 10, times to prevent clotting

Molecular Medicare Billing Request

Hospital clients submitting a request for this assay on an outpatient with Medicare should complete and submit a Molecular Medicare billing request form to notify us of the need for Allina Health Laboratory to bill insurance.

Ambient - 5 days (preferred)

Refrigerated - 5 days

Do not freeze

Ship as soon as possible

Frozen specimen

Repeat-Primed PCR (QP-PCR)

See report for interpretation

Medical necessity

Hospital clients submitting a request for this assay on an outpatient with Medicare should complete and submit a Molecular Medicare billing request form to notify us of the need for Allina Health Laboratory to bill insurance.

Molecular Medicare Billing Request