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 mL | Whole blood | EDTA (Lavender) | Ambient | Collect 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 |
---|---|
Ambient | 24 hours |
Refrigerated | 7 days |
Frozen | Unacceptable |
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.