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Baibplasmcnc

Published: August 9, 2026Updated: August 15, 2026

This test measures the level of beta-aminoisobutyric acid, a substance produced when the body breaks down certain DNA components, in your blood.

Quick summary

{"Beta-aminoisobutyric acid (BAIB) is a byproduct of thymine metabolism","The test helps evaluate how your body processes DNA building blocks","Abnormal levels may indicate liver disease or certain genetic disorders","It is a specialized test rarely ordered in routine checkups"}

Medically reviewed by WellAlly Editorial TeamLast reviewed August 15, 2026Editorial policy

Key facts at a glance

LOINC
1935-6
Short code
BAIBP
Synonyms
B-AIB Plas-mCnc
Category
chemistry
Sample
plasma
Container
Heparin (green-top) or EDTA (lavender-top) plasma tube
Units
N/A
Ref low
0
Ref high
2
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
Liquid Chromatography-Mass Spectrometry (LC-MS/MS) or Ion Exchange Chromatography
CPT
82542
SNOMED
44778008
Specimen volume
1.0-2.0 mL plasma
Stability
Plasma stable for 7 days at 2-8°C; 30 days at -20°C; avoid repeated freeze-thaw cycles
Hemolysis max
50
Lipemia max
100
Icterus max
50
TAT
48–96 hours
Order
routine

What is this test?

The Beta-Aminoisobutyric Acid (BAIB) test measures the amount of beta-aminoisobutyric acid in your plasma (the liquid part of your blood). BAIB is a naturally occurring amino acid that your body produces when breaking down thymine, which is one of the building blocks of DNA. This test helps healthcare providers understand how well your body metabolizes certain DNA components and can provide important information about your liver function and genetic health.

Reference range

0.0-2.0 mg/L (adult plasma); values may vary by laboratory methodologyN/A

Specimen: plasma

No special preparation required. Patient should maintain normal dietary habits prior to specimen collection.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Frequently asked questions

Why do I need this test?
This test is not typically part of routine blood work. Your doctor may order it if you have symptoms suggesting a liver problem or if there is concern about a rare genetic disorder affecting how your body processes DNA components. It may also be used in research settings or to monitor certain health conditions.
Is fasting required before the test?
Follow your healthcare provider's instructions. Some laboratories may require fasting for 8-12 hours before the test, while others do not. Always confirm specific preparation requirements with your doctor or the testing facility.
What do abnormal results mean?
Elevated BAIB levels are most commonly associated with liver disease or conditions affecting thymine metabolism. However, result interpretation requires medical expertise and should be discussed with your healthcare provider, who will consider your complete medical history and other test results.
Is this test safe?
Yes, this is a standard blood test with minimal risks. You may experience minor bruising or soreness at the needle site, and in rare cases, infection or excessive bleeding may occur.
  1. 1
    MedlinePlus - Genetic ConditionsSource
  2. 2
    Mayo Clinic - Liver DiseaseSource

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 15, 2026. · Read our editorial policy