Baibproserplql
This blood test measures the levels of two amino acids, beta aminoisobutyrate and proline, in your blood to help evaluate your amino acid metabolism and overall health.
{"Beta aminoisobutyrate and proline are amino acids found in your blood","This test helps doctors evaluate your body's ability to metabolize amino acids","Abnormal levels may indicate liver disease, kidney problems, or metabolic disorders","The test requires a simple blood draw","Results help doctors assess your nutritional status and organ function"}
Key facts at a glance
- LOINC
- 15132-4
- Short code
- BAIBPRO
- Synonyms
- B-AIB+Pro SerPl Ql
- Category
- chemistry
- Sample
- serum
- Container
- Red-top serum tube (no anticoagulant) or serum separator tube (SST). For plasma, use lithium heparin or EDTA tube.
- Units
- N/A
- Ref low
- 50
- Ref high
- 300
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- ≥ 0 years
- Method
- Ion exchange chromatography or Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS) for amino acid quantification
- CPT
- 82139
- SNOMED
- 104035003
- Specimen volume
- 1-2 mL of serum or plasma; minimum 0.5 mL required for analysis
- Stability
- Stable for 7 days at 2-8°C. For prolonged storage, freeze at -20°C or below. Avoid repeated freeze-thaw cycles. Hemolyzed samples may yield inaccurate results.
- Hemolysis max
- 100
- Lipemia max
- 50
- Icterus max
- 50
- TAT
- 48–168 hours
- Order
- routine
What is this test?
The Beta Aminoisobutyrate and Proline test is a laboratory test that measures the levels of two specific amino acids in your blood serum or plasma. Amino acids are the building blocks of proteins and are essential for many bodily functions, including muscle growth, tissue repair, and producing hormones and enzymes.
What are Beta Aminoisobutyrate and Proline?
Beta aminoisobutyrate (BAIBA) is a small amino acid that is produced when your body breaks down certain proteins. It plays a role in energy metabolism and has been studied in relation to exercise and metabolic health. Proline is a non-essential amino acid that is important for protein synthesis, collagen formation, and wound healing. Your body can produce proline on its own, but it can also be obtained from foods like meat, dairy, and eggs.
How is the test performed?
A healthcare professional will draw a small sample of blood from a vein in your arm. This sample will be sent to a laboratory where technicians will analyze the levels of beta aminoisobutyrate and proline. The procedure is quick and typically takes only a few minutes. You may experience slight discomfort or a bruise at the injection site, but serious complications are rare.
Do I need to prepare for the test?
Your doctor will provide specific instructions. Generally, you may need to fast (not eat or drink anything except water) for 8-12 hours before the test. Certain medications and supplements can affect the test results, so inform your doctor about all medications you are taking. Follow your doctor's instructions carefully to ensure accurate results.
Reference range
Beta-aminoisobutyric acid (BAIB): Detected/Not detected (qualitative). Proline: 50-300 µmol/L (quantitative component). Result interpretation depends on clinical context.N/A
No fasting required. Patient should maintain normal dietary habits prior to specimen collection. For pediatric or neonatal screening, sample collection timing should follow standard protocols.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Frequently asked questions
Why would my doctor order this test?
What do abnormal results mean?
Is the test safe?
How long does it take to get results?
Sources
- 1
- 2
- 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 15, 2026. · Read our editorial policy