LBCR - Overview: Lamellar Body Count Reflex, Amniotic Fluid

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Test ID: LBCR    
Lamellar Body Count Reflex, Amniotic Fluid

Useful For Suggests clinical disorders or settings where the test may be helpful

Predicting fetal lung maturity and assessing the risk of developing neonatal respiratory distress syndrome, when performed during 32 to 39 weeks gestation


Cases in which lamellar body count results are indeterminate

Profile Information A profile is a group of laboratory tests that are ordered and performed together under a single Mayo Test ID. Profile information lists the test performed, inclusive of the test fee, when a profile is ordered and includes reporting names and individual availability.

Test IDReporting NameAvailable SeparatelyAlways Performed
LBCLamellar Body Count, AFYesYes

Reflex Tests Lists test(s) that may or may not be performed, at an additional charge, depending on the result and interpretation of the initial test(s)

Test IDReporting NameAvailable SeparatelyAlways Performed
FLPFetal Lung Profile, AFYesNo

Testing Algorithm Delineates situation(s) when tests are added to the initial order. This includes reflex and additional tests.

If lamellar body count is indeterminate (between 15,000-50,000/mcL), then fetal lung profile (includes lecithin/sphingomyelin ratio and phosphatidylglycerol) is performed, at an additional charge, to aid in the risk assessment for respiratory distress syndrome.

Method Name A short description of the method used to perform the test

LBC: Sysmex XE5000, Platelet Count by Impedance Method

FLP: Thin-Layer Chromatography (TLC) with Quantitation by Densitometry

Includes lecithin/sphingomyelin ratio (L/S) and phosphatidylglycerol (PG), semiquantitative on amniotic fluid.

NY State Approved Indicates the status of NY State approval and if the test is orderable for NY State clients.


Reporting Name A shorter/abbreviated version of the Published Name for a test; an abbreviated test name

Lamellar Body Count Reflex, AF

Aliases Lists additional common names for a test, as an aid in searching

Fetal Lung Maturity