: COQ4 Gene Mutation Analysis, Whole Blood
: This test analyzes the COQ4 gene from a whole-blood sample to look for genetic changes (mutations) that can affect how the body produces coenzyme Q10.
[": A COQ4 gene test can help identify an inherited cause of coenzyme Q10 deficiency and guide medical care."]
Key facts at a glance
- LOINC
- 101956-1
- Short code
- COQ4 gene Mut Anl Bld/T
- Synonyms
- COQ4 gene 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 This Test Looks At
: The COQ4 gene provides instructions for a protein involved in making coenzyme Q10 (CoQ10), a substance cells use to produce energy. This test examines the gene for variants (mutations) that may reduce or disrupt normal CoQ10 production.
: Why It May Be Ordered
: A healthcare provider may order this test when a person has signs suggesting an inherited CoQ10 deficiency or a mitochondrial disorder. Symptoms can vary widely and may include muscle weakness, movement or balance problems, developmental concerns, seizures, or other neurological and organ-related findings.
: How the Sample Is Collected
: The test is typically performed on a whole-blood sample collected from a vein by a healthcare professional. No special preparation is usually needed, but your provider will give you specific instructions.
: Understanding the Results
: Results are reported as gene variants that are classified to help interpret their meaning. A positive finding may support a diagnosis, while a negative result does not always rule out a genetic cause. Because interpretation can be complex, results are best discussed with a genetic counselor or your care team.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
: Identifying a COQ4-related variant can clarify the cause of a suspected mitochondrial or CoQ10-deficiency condition and may inform management, including monitoring and, in some cases, treatment decisions made by your care team. Genetic results should always be interpreted alongside symptoms, family history, and other clinical findings.
Short name
: COQ4 Genetic Testing
Frequently asked questions
: Is this test the same as measuring coenzyme Q10 levels in the blood?
: Do I need genetic counseling before or after this test?
: Can a negative result rule out all causes of CoQ10 deficiency?
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