Mitochondrial DNA Mutation Analysis, Whole Blood
This test looks for changes (mutations) in mitochondrial DNA, the genetic material found inside the energy-producing structures of your cells. It is typically done on a blood sample to help investigate certain inherited or acquired conditions.
["The test checks your mitochondrial DNA for mutations that can affect how your body produces energy."]
Key facts at a glance
- LOINC
- 61114-5
- Short code
- mtDNA III Mut Anl Bld/T
- Synonyms
- mtDNA III Mut Anl Bld/T
- Category
- chemistry
- Sample
- whole-blood
- Container
- Lavender-top (EDTA)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- molgen
- Specimen volume
- 3 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h
- Hemolysis max
- 0
- Lipemia max
- 0
- Icterus max
- 0
- TAT
- 4–24 hours
- Order
- routine
What Is Being Tested?
Mitochondria are tiny structures inside your cells that make energy. They have their own DNA, called mitochondrial DNA, which is separate from the DNA in the cell nucleus. This test examines that mitochondrial DNA for specific mutations or changes.
Why Might Your Doctor Order It?
Your doctor may order this test if you have symptoms that could suggest a mitochondrial disorder, such as unexplained muscle weakness, fatigue, developmental or neurological problems, or a family history of similar conditions. It may also be used in certain other clinical situations where mitochondrial DNA changes are relevant.
How the Sample Is Collected
The test is usually performed on a sample of whole blood drawn from a vein in your arm, using a standard blood draw. In some cases, other specimens may be requested depending on your doctor's evaluation.
What the Results Mean
Results are reported as whether a mutation was detected or not. If a mutation is found, your doctor will interpret it in the context of your symptoms, family history, and other tests. A negative result does not always rule out a mitochondrial condition, because some changes may not be detectable in blood or may require testing other tissues.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Mitochondrial DNA mutations can be associated with a range of conditions affecting energy-hungry organs such as muscle, brain, heart, and nerves. Identifying a mutation can help guide diagnosis, management, and sometimes family screening, but results must always be interpreted by a qualified clinician alongside the full clinical picture.
Short name
mtDNA Mutation
Frequently asked questions
Does a normal result mean I definitely do not have a mitochondrial disorder?
Is this test the same as an ancestry or consumer DNA test?
Will I need to prepare before the blood draw?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy