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Test Includes
This test includes the following genes: MT-ATP8, MT-ATP6, MT-CO1, MT-CO2, MT-CO3, MT-CYB, MT-ND1, MT-ND2, MT-ND3, MT-ND4L, MT-ND4, MT-ND5, MT-ND6, MT-RNR2, MT-TA, MT-TR, MT-TN, MT-TD, MT-TC, MT-TE, MT-TQ, MT-TG, MT-TH, MT-TI, MT-TL1, MT-TL2, MT-TK, MT-TM, MT-TF, MT-TP, MT-TS1, MT-TS2, MT-TT, MT-TW, MT-TY, MT-TV and MT-RNR1.
Expected Turnaround Time
2 - 4 weeks
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Genes Assessed
Specimen Requirements
Specimen
Whole blood at room temperature; oral swab; extracted DNA (from blood, oral swab or muscle only) or frozen muscle tissue
Volume
Whole blood: 4 mL; oral swab: 3 swabs; muscle: 75 milligrams; or extracted DNA: contact MNG Genetic Services 844-664-8378 (844-MNGTEST)
Minimum Volume
Whole blood: 2 mL; oral swab: 1 swab; muscle: 50 milligrams; or extracted DNA: contact MNG Genetic Services 844-664-8378 (844-MNGTEST)
Container
Whole blood: lavender-top (EDTA) tube; oral swab: OCD-100 DNA Genotek; muscle: sterile screw-capped vial; or extracted DNA: contact MNG Genetic Services 844-664-8378 (844-MNGTEST)
Collection
Whole blood: standard phlebotomy; oral swab: follow kit instructions; muscle: snap freeze in liquid nitrogen and maintain at -80°C; or extracted DNA: contact MNG Genetic Services 844-664-8378 (844-MNGTEST)
Storage Instructions
Maintain whole blood and oral swab specimens at room temperature or refrigerate at 4°C. Do not freeze. Muscle specimen: Maintain frozen and ship on dry ice.
Stability Requirements
• Room temperature: whole blood: 14 days; swab: 60 days; muscle: 0 days
• Refrigerated: whole blood: 30 days; swab: 60 days; muscle; 0 days
• Frozen: muscle: 15 years
Causes for Rejection
Hemolyzed; quantity not sufficient for analysis; improper container; improper storage temperature
Test Details
Use
Diagnostic testing
Limitations
This assay does not detect mitochondrial depletion, single nucleotide variants (SNVs) or small indels. False positive or false negative results may occur for reasons that include homologous regions, blood transfusions, bone marrow transplantation, tissue-specific heteroplasmy, mislabeled samples or erroneous representation of family relationships. Low levels of heteroplasmy may not be reliably detected. Interpretation of the clinical significance of gene variations is limited by information about the variant that is available at the time of reporting and by the quality and quantity of clinical information provided with the sample. The interpretation of the clinical significance of variants may change.
This test was developed and its performance characteristics determined by Labcorp. It has not been cleared or approved by the Food and Drug Administration.
Methodology
Next-generation sequencing of long range PCR products to identify deletions
© 2021 Laboratory Corporation of America® Holdings and Lexi-Comp Inc. All Rights Reserved.
CPT Statement/Profile Statement
The LOINC® codes are copyright © 1994-2021, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. Permission is granted in perpetuity, without payment of license fees or royalties, to use, copy, or distribute the LOINC® codes for any commercial or non-commercial purpose, subject to the terms under the license agreement found at https://loinc.org/license/. Additional information regarding LOINC® codes can be found at LOINC.org, including the LOINC Manual, which can be downloaded at LOINC.org/downloads/files/LOINCManual.pdf