Meconium Amniotic Fluid Analysis for Bilirubin (Qualitative)
This test checks for bilirubin in amniotic fluid that has been exposed to meconium (the newborn’s first stool). Bilirubin is a breakdown product of red blood cells, and high levels can indicate potential jaundice or other health concerns in the baby.
["Meconium bilirubin testing helps monitor fetal health during labor by detecting bilirubin in amniotic fluid."]
Key facts at a glance
- LOINC
- 19125-4
- Short code
- Meconium Amn Ql
- Synonyms
- Meconium Amn Ql
- 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
Why Is This Test Done?
Doctors may order this test if meconium is detected in the amniotic fluid during labor. Meconium exposure can sometimes lead to bilirubin buildup in the baby’s blood, which may require closer monitoring or treatment to prevent jaundice or other complications.
What Does the Test Involve?
A small sample of amniotic fluid is collected during labor, usually through a swab or direct testing of fluid near the baby’s head. The test checks for bilirubin presence using a qualitative method, often a color change indicator.
What Are the Possible Results?
The result is qualitative (positive or negative) rather than a numeric value. A positive result means bilirubin was detected in the meconium-exposed fluid, which may prompt additional monitoring or interventions.
What Does a Positive Result Mean?
A positive result indicates meconium-stained amniotic fluid, which can sometimes lead to bilirubin accumulation in the newborn. While not always an immediate concern, it may require the healthcare team to assess the baby’s bilirubin levels closely after birth.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance: Meconium Bilirubin Testing
Short name
Meconium Bilirubin Test
Frequently asked questions
Meconium bilirubin testing helps identify cases where meconium exposure during labor may increase the risk of hyperbilirubinemia (high bilirubin levels) in the newborn. Early detection allows for timely interventions, such as phototherapy or blood transfusions, if needed to prevent complications like jaundice or brain damage.
A positive test means meconium was found in the amniotic fluid, which may increase the risk of bilirubin buildup. Your healthcare provider will monitor your baby’s bilirubin levels closely after birth to ensure they remain safe. If levels are high, treatments like phototherapy (light therapy) may be recommended.
Can meconium bilirubin testing prevent jaundice?
Sources
- 1
- 2Lab Tests OnlineSource
- 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 16, 2026. · Read our editorial policy