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St. John Health System
Lab Catalog


Index:

Myotonic Dystrophy (DMPK)

Order Name MYOTON DYS
Test Number: 5594800
Revision Date 12/12/2022
Test Name Methodology LOINC Code
Myotonic Dystrophy (DMPK)
Polymerase Chain Reaction  
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 4 mL (1 mL) Whole Blood EDTA (Lavender Top) Room Temperature
Instructions Specimen Type: Lavender-Top (EDTA) Tube
Specimen Storage: Ship ASAP, but stable up to 5 days post-collection at room temperature. DO NOT FREEZE.
Specimen Collection: Draw blood into EDTA tube guidelines in kit; Transfer extracted DNA into sterile screw capped tube; Collect biopsy and/or culture cells per established policy
Special Instructions: Testing referred to Medical Neurogenetic LLC MNEGA#MOL299
Specimen Stability: Ambient: 5 days, Refrigerated : 5 days, Frozen: Do NOT Freeze
GENERAL INFORMATION
Expected TAT 2 - 4 weeks  
Clinical Use Myotonic dystrophy (DM) is the most common inherited neuromuscular disease in adults and affects 1 in 8,000 individuals. DM is an autosomal dominant muscle disease which is caused by a defect in the regulation of a gene cluster located on chromosome 19q13.2. Myotonic dystrophy results in prolonged muscle contraction, cardiac arrhythmia, and can cause cataracts. 
Notes Labcorp Test Code: 620084
CPT Code(s) 81234
(Pre-Authorization Required) Please submit Pre-Authorization form when the patient has United Healthcare insurance.
Service Provided By Labcorp Oklahoma, Inc.
Lab Section Reference Lab