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Test ID LBC Lamellar Body Count, Amniotic Fluid

Useful For

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

Method Name

Sysmex XE5000, Platelet Count by Impedance Method

Reporting Name

Lamellar Body Count, AF

Specimen Type

Amniotic Fld

Specimen Required

Collection Container/Tube: Amniotic fluid container

Submission Container/Tube: Plastic vial

Specimen Volume: 10 mL

Collection Instructions:

1. Do not centrifuge.

2. Amniotic specimens should be blood and meconium free.

Additional Information: Freezing or centrifuging the specimen may cause erroneous results.

Specimen Minimum Volume

9.8 mL

Specimen Stability Information

Specimen Type Temperature Time
Amniotic Fld Refrigerated (preferred) 28 days
  Ambient  7 days

Reference Values

Immature: <15,000/mcL

Indeterminate: 15,000-50,000/mcL

Mature: >50,000/mcL

 

Cutoffs are based on consensus protocol (Neerhof M, Dohnal JC, Ashwood ER, et al: Lamellar body counts: a consensus on protocol. Obstet Gynecol 2001;97:318-320)

Day(s) and Time(s) Performed

Monday through Sunday; Continuously

Performing Laboratory

Mayo Medical Laboratories in Rochester

CPT Code Information

83664

LOINC Code Information

Test ID Test Order Name Order LOINC Value
LBC Lamellar Body Count, AF In Process

 

Result ID Test Result Name Result LOINC Value
LBCC Lamellar Body Count In Process
LBCI Interpretation In Process

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.