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###1: Decadienoylcarnitine [Moles/volume] in Cerebrospinal Fluid

Published: August 9, 2026Updated: August 16, 2026

###3: This specialized test measures decadienoylcarnitine, an acylcarnitine involved in cellular energy metabolism, in cerebrospinal fluid. It is used as part of the evaluation of certain inherited metabolic disorders.

Quick summary

["###4: An abnormal result may indicate a fatty-acid or peroxisomal metabolism disorder, but it must be interpreted with other tests and clinical findings."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
53464-4
Short code
Decadienoylcarn CSF-sCnc
Synonyms
Decadienoylcarn 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

###5: What the Test Measures

###6: Decadienoylcarnitine is a form of carnitine used to carry fatty acids into mitochondria, where they help produce energy. This test measures its concentration in cerebrospinal fluid, the fluid surrounding the brain and spinal cord.

###7: How the Test Is Performed

###8: Cerebrospinal fluid is usually collected through a lumbar puncture, also called a spinal tap. The sample is sent to a laboratory for specialized quantitative analysis.

###9: Why the Test Is Ordered

###10: This test may be ordered when an inherited disorder affecting fatty-acid oxidation, peroxisomes, or neurological development is suspected. It is generally interpreted together with a broader metabolic panel, genetic testing, imaging, and the patient's symptoms.

###11: Understanding the Results

###11: Results may be reported as normal or elevated, and reference intervals can vary by laboratory and patient age. An isolated abnormal result does not establish a diagnosis, and results outside the laboratory's expected interval should be reviewed by the ordering clinician.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

###13: Elevated decadienoylcarnitine in cerebrospinal fluid can occur in inherited disorders of fatty-acid or peroxisomal metabolism, including some disorders associated with neurologic abnormalities. Because nonspecific abnormalities can have other causes, this result is most useful when evaluated by a metabolic or genetics specialist alongside the rest of the diagnostic workup.

Short name

###2: CSF Decadienoylcarnitine

Frequently asked questions

###14: Does an elevated result mean I have a metabolic disorder?
###15: No. An elevated result can raise suspicion for a metabolic disorder, but it is not diagnostic by itself. Your clinician will consider symptoms, other laboratory findings, imaging, and possibly genetic testing.
###16: Is this the same as a routine carnitine test?
###17: No. This is a specialized cerebrospinal-fluid test for a specific acylcarnitine, rather than a general blood carnitine or urine acylcarnitine screen. Different specimens and panels can provide different information.
###18: Can the result be affected by medication or treatment?
###19: Certain metabolic treatments, dietary changes, or medications may affect carnitine metabolism, but the effect varies. Tell your clinician about medications, supplements, diet, and treatments before the sample is collected.
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

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