Bilirubin in Amniotic Fluid
Amniotic Fluid Analysis for Hemolytic Disease of the Newborn, Amniotic Fluid Spectural Analysis, Liley Test , ARUP #80276. Order as a Miscellaneous Sendout.
Specimen Collection Criteria
Collect: 3.0 mL amniotic fluid in a sterile collection container. (Min: 2.0 mL)
Protect specimen from light after collection.
Physician Office/Drawsite Specimen Preparation
Protect specimen from light. Maintain specimen refrigerated (2-8°C or 36-46°F) until transport.
Preparation for Courier Transport
Transport: Light-protected amniotic fluid in a sterile collection container, refrigerated (2-8°C or 36-46°F).
- Specimens not protected from light.
- Specimens not collected and processed as indicated.
Sunday - Saturday.
Results available in 2-4 days.
Reference values are dependent on duration of pregnancy.
Results are reported as "corrected absorbance at 450 nm" together with the corresponding zone (lower, mid, upper) from the Liley chart. Values falling in the upper zone are usually associated with severly-affected fetuses/neonates, those in the lower zone are usually associated with unaffected or mildly affected fetuses/neonates.
Maternal RBC antibodies may cause hemolytic disease in the fetus and neonate. The level of bilirubin in amniotic fluid is proportional to the degree of hemolysis and is therefore used to assess the developing fetus.
ARUP #80276. Order as a Miscellaneous Sendout.
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This directory currently reflects information only for specimens collected and/or processed at the
Farmington Hills, Grosse Pointe, Royal Oak, and Troy campuses.