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Test ID DMDZ DMD Gene, Full Gene Analysis, Varies


Ordering Guidance


Targeted testing for familial variants (also called site-specific or known mutations testing) is available for variants identified in the DMD gene. See FMTT / Familial Variant, Targeted Testing, Varies. To obtain more information about this testing option, call 800-533-1710.

 

Testing for the DMD gene as a customized panel is available. For more information see CGPH / Custom Gene Panel, Hereditary, Next-Generation Sequencing, Varies.



Shipping Instructions


Specimen preferred to arrive within 96 hours of collection.



Specimen Required


Patient Preparation: A previous bone marrow transplant from an allogenic donor will interfere with testing. For instructions for testing patients who have received a bone marrow transplant, call 800-533-1710.

Specimen Type: Whole blood

Container/Tube: Lavender top (EDTA) or yellow top (ACD)

Acceptable: Any anticoagulant

Specimen Volume: 3 mL

Collection Instructions:

1. Invert several times to mix blood.

2. Send whole blood specimen in original tube. Do not aliquot.

Specimen Stability Information: Ambient (preferred)/Refrigerated

Additional Information: To ensure minimum volume and concentration of DNA is met, the preferred volume of blood must be submitted. Testing may be canceled if DNA requirements are inadequate.


Forms

1. New York Clients-Informed consent is required.

Document on the request form or electronic order that a copy is on file.

The following documents are available:

-Informed Consent for Genetic Testing (T576)

-Informed Consent for Genetic Testing (Spanish) (T826)

2. Molecular Genetics: Neurology Patient Information

3. If not ordering electronically, complete, print, and send a Neurology Specialty Testing Client Test Request (T732) with the specimen.

Useful For

Establishing a molecular diagnosis for patients with Duchenne muscular dystrophy and Becker muscular dystrophy

 

Identifying variants within DMD known to be associated with Duchenne muscular dystrophy or Becker muscular dystrophy, allowing for predictive testing of at-risk family members

Genetics Test Information

This test utilizes next-generation sequencing to detect single nucleotide and copy number variants in one gene associated with Duchenne muscular dystrophy and Becker muscular dystrophy: DMD. See Method Description for additional details.

 

Identification of a disease-causing variant may assist with diagnosis, prognosis, clinical management, recurrence risk assessment, familial screening, and genetic counseling for Duchenne muscular dystrophy and Becker muscular dystrophy.

Method Name

Sequence Capture and Targeted Next-Generation Sequencing followed by Polymerase Chain Reaction (PCR) and Sanger Sequencing

Reporting Name

DMD Gene, Full Gene Analysis

Specimen Type

Varies

Specimen Minimum Volume

1 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Varies Varies

Reference Values

An interpretive report will be provided.

Day(s) Performed

Varies

Report Available

21 to 35 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information

81408

LOINC Code Information

Test ID Test Order Name Order LOINC Value
DMDZ DMD Gene, Full Gene Analysis 22075-6

 

Result ID Test Result Name Result LOINC Value
617533 Test Description 62364-5
617534 Specimen 31208-2
617535 Source 31208-2
617536 Result Summary 50397-9
617537 Result 82939-0
617538 Interpretation 69047-9
618177 Additional Results 82939-0
617539 Resources 99622-3
617540 Additional Information 48767-8
617541 Method 85069-3
617542 Genes Analyzed 48018-6
617543 Disclaimer 62364-5
617544 Released By 18771-6

NY State Approved

Yes

Testing Algorithm

For more information see Neuromuscular Myopathy Testing Algorithm