Cerebrospinal Fluid Decanoyl Carnitine (Substance Concentration)
This test measures the amount of decanoyl carnitine, a type of fat-derived molecule, in your cerebrospinal fluid (the fluid surrounding your brain and spinal cord). It may be used to assess metabolic or fatty acid oxidation disorders.
["Measuring decanoyl carnitine in CSF helps identify potential metabolic conditions affecting fat metabolism."]
Key facts at a glance
- LOINC
- 53075-8
- Short code
- Decanoylcarn CSF-sCnc
- Synonyms
- Decanoylcarn CSF-sCnc
- Category
- chemistry
- Sample
- csf
- Container
- Sterile tube
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Specimen volume
- 1-2 mL
- Stability
- Immediate analysis required, Refrigerated: 1h
- Hemolysis max
- 200
- TAT
- 4–24 hours
- Order
- routine
Why This Test Might Be Ordered
Your healthcare provider may recommend this test if you have symptoms or a family history suggestive of inherited metabolic disorders, such as medium-chain acyl-CoA dehydrogenase (MCAD) deficiency or other carnitine-related conditions. It could also be part of a broader evaluation for unexplained neurological symptoms, developmental delays, or recurrent episodes of illness.
What to Expect Before the Test
No special preparation is typically needed. You may be asked to fast for a few hours before the test, but this depends on your provider’s instructions. The test involves a simple lumbar puncture (spinal tap) where fluid is collected from your lower back.
What to Expect During the Test
During the procedure, you’ll lie on your side, and a healthcare provider will insert a needle into your back to collect cerebrospinal fluid. You may feel pressure or a slight pinch, but the procedure is usually quick and painless. You might experience mild soreness afterward.
What the Results Mean
Elevated levels of decanoyl carnitine in CSF may indicate impaired fatty acid metabolism, which could be linked to genetic disorders. Your results will be reviewed by a specialist, such as a metabolic health provider, who will correlate them with your symptoms and medical history.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Elevated decanoyl carnitine in CSF is often associated with inherited metabolic disorders that disrupt how your body breaks down fats. These conditions can affect energy production, nerve function, and overall health. Early detection can help guide treatment and management strategies, such as dietary adjustments or enzyme replacement therapies.
Short name
Decanoyl Carnitine in CSF
Frequently asked questions
Will this test be done often?
How long will it take to get my results?
Can I eat or drink before this test?
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