DMPK Repeat Analysis




Test Mnemonic

DM1DNA

CPT Codes

  • 81234 - QTY (1)

Aliases

  • Congenital Myotonic Dystrophy (CMyD)
  • DM1 DNA
  • Myotonic Dystrophy (DM1)
  • Steinert Disease

Performing Laboratory

GeneDx, Inc


Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
15 mLWhole bloodEDTA (Lavender) AmbientCollect 3 EDTA lavender top tubes to ensure adequate specimen volume. Specimen should be stored refrigerated until shipment if unable to ship the same day of collection. Deliver to Cleveland Clinic Laboratories after collection to optimize DNA quality and quantity.

Minimum Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
10 mL     

Stability

Environmental Condition Description
Ambient24 hours
Refrigerated7 days
FrozenUnacceptable

Days Performed

Sun - Sat

Turnaround Time

21 - 23 days

Methodology

Name Description
Fragment Analysis 

Reference Range

Special Info

Order this test only if a family member has been confirmed by prior testing.