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Vanderbilt Pathology Laboratory Services

Test Directory



LAMELLAR BODY COUNT (LBC)

Department: Hematology
Test Synonym(s): LBC, FLM, Fetal Lung Maturity
CPT Codes: 89050
Methodology: Impedance
Reference Range: Mature lungs: >5o Thousand /mcL
Specimen: Amniotic Fluid
Alternate Specimen: None
Volume: 5 mL Amniotic fluid
Minimum Volume: 2.5 mL Amniotic fluid
Temperature: Ambient: 4 hours; Refrigerated: 48 hours; DO NOT FREEZE
Stability: 7 days refrigerated
Reasons for Rejection: Frozen sample; Blood, mucus or meconium contamination
Days Performed: Daily
Times Performed: Continuous
TAT: 4 hours
Special Instructions: DO NOT FREEZE
Click here to print the Fetal Risk Information Sheet.

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