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Lamellar Body Counts
0080940
Ordering Recommendation

Preferred fetal lung maturity test.

Mnemonic
LBC
Methodology
Quantitative Automated Cell Count
Performed
Sun-Sat
Reported
Within 24 hours
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
Amniocentesis preferred.  
Collect
Amniotic fluid.  
Specimen Preparation
Do not centrifuge. Transport 1 mL amniotic fluid. (Min: 0.25 mL)  
Storage/Transport Temperature
Refrigerated.  
Unacceptable Conditions
Frozen specimens. Vaginal pools containing mucous. Specimens that contain meconium. Grossly hemolyzed specimens.  
Remarks
 
Stability
Ambient: 1 week; Refrigerated: 1 week; Frozen: Unacceptable  
Reference Interval
Greater than or equal to 50 k/uL
Interpretive Data
A lamellar body count result greater than or equal to 50 k/uL is consistent with fetal lung maturity. Because there is no lamellar body count below which fetal lung immaturity can be identified with high certainty, a result less than 50 k/uL can only be interpreted as "not mature."


Note
CPT Code(s)
83664
Components
Component Test Code*Component Chart NameLOINC
0080940Lamellar Body Counts19114-8
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • Lamellar Body Count, Amniotic Fluid
  • Lamellar Body Counts
  • LBC