Test Overview
Test Methodology
Polymerase Chain Reaction (PCR), Fragment Analysis and Southern Blot
Test Usage
Detects CTG repeat expansions in the muscle protein kinase (DMPK) gene.
Reference Range *
5-37 CTG trinucleotide repeats
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Test Details
Analytic Time
14 - 28 days
Soft Order Code
SO
Synonyms
- Myotonic Dystrophy, Type 1
Laboratory
Sendout
Reference Laboratory
Athena Diagnostics 108
Section
Special Testing
Specimen Requirements
Collection Instructions
Collect specimen in sufficient lavender top tubes. Send intact whole blood specimen at room temperature.
Normal Volume
8 mL EDTA whole blood (peds 2 mL whole blood)
Minimum Volume
6 mL EDTA whole blood (peds 1 mL whole blood)
Additional Information
Test sent to Athena Diagnostics.
Billing
CPT Code
81234