Baibamnscnc
A prenatal laboratory test that measures Beta aminoisobutyrate levels in amniotic fluid to assess fetal metabolic health.
{"This test evaluates Beta aminoisobutyrate levels in amniotic fluid collected during pregnancy","It helps assess fetal metabolism and development","Sample is obtained through amniocentesis procedure","Results help healthcare providers monitor fetal health","Abnormal levels may indicate certain metabolic conditions"}
Key facts at a glance
- LOINC
- 27217-9
- Short code
- B-AIB Amn-sCnc
- Synonyms
- B-AIB Amn-sCnc
- Category
- chemistry
- Sample
- fluid
- Container
- Sterile tube
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Specimen volume
- 2-5 mL
- Stability
- Room temperature: 2h, Refrigerated: 24h
- Hemolysis max
- 300
- TAT
- 4–24 hours
- Order
- routine
What is this test?
The Beta aminoisobutyrate test measures the level of Beta aminoisobutyrate (BAIB), a substance produced during the breakdown of certain molecules in the body, in the amniotic fluid that surrounds the baby during pregnancy. Amniotic fluid is collected through a procedure called amniocentesis, where a thin needle is used to withdraw a small sample of fluid from the amniotic sac.
Why is this test performed?
This test is performed as part of prenatal assessment to evaluate fetal health and metabolic function. Healthcare providers may order this test to gather additional information about how the baby's body is developing and processing nutrients. It is typically used in conjunction with other prenatal tests to get a more complete picture of fetal health.
How is the sample collected?
The sample is collected through amniocentesis, a procedure performed under ultrasound guidance. A healthcare provider inserts a thin needle through the abdominal wall and into the uterus to withdraw a small amount of amniotic fluid. The procedure is generally safe and takes only a few minutes. You may experience some discomfort or cramping during or after the procedure.
What do the results mean?
Your healthcare provider will interpret the results in the context of your overall pregnancy status and other test findings. The test measures the concentration of Beta aminoisobutyrate in the amniotic fluid, and abnormal levels may prompt further investigation or additional testing to determine the cause.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Frequently asked questions
Is this test safe during pregnancy?
How long does it take to get results?
Do I need to prepare for this test?
What happens if my results are abnormal?
Sources
- 1
- 2ACOG - AmniocentesisSource
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