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Beta-butyric acid concentration in cerebrospinal fluid (CSF)

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

This test measures the level of beta-butyric acid, a short-chain fatty acid, in your cerebrospinal fluid. It may be used to assess metabolic or neurological conditions.

Quick summary

["Beta-butyric acid in CSF could help diagnose or monitor metabolic disorders affecting the brain."]

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

Key facts at a glance

LOINC
79309-1
Short code
G-butyrobetaine CSF-sCnc
Synonyms
G-butyrobetaine 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 like seizures, developmental delays, or neurological issues that could be linked to metabolic disorders. It might also be part of a broader evaluation for conditions affecting fat metabolism or energy production in the brain.

What to Expect Before the Test

No special preparation is typically needed. You may have a lumbar puncture (spinal tap) to collect CSF, which is usually done in a hospital setting. You might feel mild discomfort, but it’s generally safe and well-tolerated.

What the Test Results Mean

Elevated levels of beta-butyric acid in CSF could indicate certain metabolic disorders, such as mitochondrial diseases or organic acidemias. However, results depend on clinical context and may require further testing.

Common Conditions Monitored

This test is often used in the evaluation of rare genetic or metabolic disorders that affect how the body produces energy. It may also be part of a diagnostic workup for unexplained neurological symptoms in infants or children.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance: Beta-Butyric Acid in CSF

Short name

Beta-Butyric Acid CSF

Frequently asked questions

What does a high or low level of beta-butyric acid in CSF mean?
High levels may suggest metabolic disorders like organic acidemias or mitochondrial dysfunction, which can impact brain function. Low levels might be less commonly associated with this test but could be part of a broader metabolic assessment.
How often will I need this test?
The frequency depends on your condition. If you have a known metabolic disorder, your provider may order this test periodically to monitor your progress or response to treatment.
Can this test be done at home?
No, this test requires a lumbar puncture in a clinical setting, so it cannot be performed at home.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

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