For the safety of our patients and employees in Texas, Oklahoma, Missouri and Arkansas, the current winter weather may affect patient service center hours. Please review the list of affected locations for further information.
This assay is not currently available in New York state.
14 - 28 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Whole blood
4 mL
1 mL
Lavender-top (EDTA) tube
Draw blood into EDTA tube.
Ship ASAP, but stable up to 5 days post-collection at room temperature. Do not freeze.
Temperature | Period |
---|---|
Room temperature | 5 days |
Refrigerated | 5 days |
Frozen | Do not freeze |
Frozen blood EDTA tube
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.
Repeat-Primed PCR (QP-PCR)
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