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Test Code LAB1043 Lamellar Body Count, Amniotic Fluid

Additional Codes


Reporting Title

Lamellar Body Count, AF


Sysmex XN-9000, Platelet Count by Impedance Method

Performing Laboratory

OhioHealth Laboratory Services-RMH Core Laboratory

Specimen Requirements

Specimen Type: Amniotic fluid

Collection Container/Tube: Amniotic fluid container

Submission Container/Tube: Plastic vial

Specimen Volume: 10 mL

Specimen Minimum Volume:  1.0 mL

Collection Instructions: Do not centrifuge. Do not Freeze

Additional Information: Centrifuging the specimen may cause erroneous results.


Reject Due To:

Hemolysis: Visible hemolysis, reject

Lipemia: NA

Icterus: NA

Other: NA

Specimen Transport Temperature

Refrigerated (preferred) 28 days/Ambient 7 days

Do not freeze

Reference Values

Immature:          ≤15 K/mcL

Indeterminate:  16-49 K/mcL

Mature:             ≥50  K/mcL 

Alerting category: All results are called within 1 hour

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) Test Set Up

Monday through Sunday, Continuously

Test Classification and CPT Coding

Test Classification:

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


CPT Code: